Ateacher is making a histogram of the test scores of his 25 students on the last test. the scores range from 40 to 100. what scale is best to use on the x-axis?
a) 1 point
b) 5 points
c) 10 points
d) 20 points

Aboat's value over time is given as the function f(x) and graphed below. use a(x) = 400(b)x + 0 as the parent function. which graph shows the boat's value increasing at a rate of 25% per year?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?