Answer:
40 or 
Step-by-step explanation:

(0.75+d)*4 is the answer to the question
18. A line perpendicular to the x-axis is a vertical line.
The equation of a vertical line is
x = k,
where k is the x-coordinate of every point on the line.
Since this vertical line goes through point (-10, 0.5), and this point has x-coordinate -10, then every point on the line has x-coordinate -10.
The equation is
x = -10
19.

To find f(9), just replace x with 9 and evaluate the expression.




20.




The number of calories used per mile of jogging is determined both b an individual's weight and speed of running. Individuals of the same approximate weight running 6 mph or 1 mile every ten minutes have a calorie factor of 62% of their weight; i.e., calories burned= (weight)(0.62). If they run an 8 minute mile the factor is 65%.
(65*143) then divide by 100= 92.95 meaning your answer is B