please someone solve all these question for me in within 1 hour pls
1. Over $0 In 1990,the federal tax rates for a married couple ling jointly were as given in the table, What is desired is a mathematical function which allows a married couple to calculate theirtax liability ,given their taxable income. Taxable Income But not over Tax rate 525000 15% 25000 65000 35% 65000 125,660 28% 125,660 2. Two points [p,q) on a linear demand function are {$24, 60000} and [$32,44400}.Determine the demand function q =f (p) and determine the restricted domain and range. Given the following demand and supply functions for two competing products, 0.11 = 32 3P1 + P2 (id: = 15F: 5 (in = 92 + 2m - 4102 (in = 32p; 5 Determine whether there rae prices which bring the supply and demand level into equilibrium for the two products. If so, what are the equilibrium quantities? A publisher has a xed cost of $250,000 associated with the production of a college mathematics book.The contribution to prot and xed cost from the sale of each book is $6.25.Determine the number of books which must be sold in order to break even. A car-leasing agency purchases new cars each year for use in the agency.The car cost $15000 new.They are used for 3 years,after which they are sold for $3600.The owner of the agency estimates that the variable costs of operating the cars.exclusive of gasoline,are $0.16 per mile.Cars are leased at a flat rate of $0.33 per milelgasoline not included]. a. What is the break-even mileage for the 3-year period? b. What are total revenue,total cost, and total profit for the 3-year period if a car is leased for 50,000 miles? c. What price per mile must be charged in order to break even if a car is leased for 50,000 miles over a period of 3 years? d. What price per per mile must be charged in order to earn a profit of $5000 per car over its 3-year lifetime if it is leased for a total of 50,000 miles? Determine domain of the function a. f(x)=14x b. for) = V9 t2 A company estimates that the number of units it sells each year is a function of the expenditure on radio and Tv advertising.The specic functgion is 2=f(x,yl= 20.000x + 40,000y 20x2 30y2 102:}! Where I equals the number of units sold annually , 1: equals the amount spent for TV advertising and y equals the amount spent for radio advertisingDetermine the expected annual sales if $50,000 is spent on tv and $20,000 spent on radio. 8. {a.}Given y= giul=2"' and u=hlxl=x5,determine gthlxl=? {b.l Given y= g(u}={u 5)2 and u=hlitl=1r2 + 1,determine g{h(x)=
