The equation M(x,y) = 68 + 0.5x - 0.7y gives the mileage (in mpg) of a new car as a function of tire pressure x (in psi) and speed y (in mph). Find M(29,50) (include the appropriate units) and explain what it means. M(29,50) = (Type an integer or a decimal.) Explain what the answer in the previous step means. Select the correct choice below and fill in the answer boxes within your choice. (Type integers or decimals.) O A. Increasing the tire pressure by one psi and maintaining a speed of mph will increase mileage by Impg. O B. Increasing the speed by one mph and maintaining a tire pressure of psi will increase mileage by mpg. O C. Mileage is mpg at a tire pressure of psi and a speed of mph. O D. Increasing the tire pressure by one psi and maintaining a speed of psi will decrease mileage by mpg. O E. Increasing the speed by one mph and maintaining a tire pressure of psi will increase mileage by mpg.\fA firm produces two types of calculators each week, x of type A and y of type B. The weekly revenue and cost functions (in dollars) are as follows. R(X,y) = 130x + 190y + 0.08xy - 0.06x2 - 0.08y C(x,y) = 9x + 8y + 30,000 Find Px(1300, 1900) and Py(1300, 1900), and interpret the results. Px(1300, 1900) = Choose the correct interpretation of Px(1300, 1900). O A. When selling 1,300 units of type A and 1,900 units of type B, the profit will increase approximately $117 per unit increase in production of type A. O B. When selling 1,300 units of type A and 1,900 units of type B, the profit will increase approximately $69 per unit increase in production of type A. O C. Selling 1,300 units of type A and 1,900 units of type B will yield a profit of approximately $117. O D. Selling 1,300 units of type A and 1,900 units of type B will yield a profit of approximately $69. Py (1300, 1900) = Choose the correct interpretation of Py(1300, 1900). O A. Selling 1,300 units of type A and 1,900 units of type B will yield a profit of approximately $30. O B. When selling 1,300 units of type A and 1,900 units of type B, the profit will decrease approximately $18 per unit increase in production of type B. O C. Selling 1,300 units of type A and 1,900 units of type B will yield a profit of approximately $18. O D. When selling 1,300 units of type A and 1,900 units of type B, the profit will decrease approximately $30 per unit increase in production of type B.Find the indicated value of the function f(x,y) = 2x + 8y - 8. f(2, - 3) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. f(2, - 3) = . (Simplify your answer.) O B. f(2, - 3) is undefined.A company produces two models of a surfboard: a standard model and a competition model. If the standard model is produced at a variable cost of $150 each and the competition model at a K variable cost of $330 each, and if the total fixed costs per month are $7,000, then the monthly cost function is given by C(x.y) = 7.000 + 150x + 330y where x and y are the numbers of standard and competition models produced per month, respectively. Find C(16,8), C(30.3), and C(40.40). C(16,8) = $ (Simplify your answer.) C(30,3) = $|(Simplify your answer.) C(40,40) = $ (Simplify your answer.)