Question 4 1 pts Using the information below, what is the formula for the total costs of X-rays? X-Rays Taken X-ray Costs $17,250 High-Activity Level 7,000 Low-Activity Level 10,250 3,000 Y $13,250 $0.57X Y $1.75 $5,000X Y = $0.57$13,250X Y = $5,000 $1.75X Question 5 1 pts Which of the methods below is the most subjective in determining fixed and variable costs from multiple data points? visual fit high-low least-squares regression All of the above methods involve the same amount of subjectivity