A 13-foot ladder extends from the ground to the top of an 8-foot wall. Which expression could be used to determine the angle, in degrees, between the top of the ladder and the top of the wall?

a. sin(8/13
b. cos(8/13)
c. arccos(8/13)
d. arcsin(8/13)

3/8 of the students in ms. mull’s class ride the bus. if there are 24 students in the class, how many students ride the bus?

The weight of a rock sample is measured to be 2.5 ponds. what is the percent of error in the measurement?

Bradley is preparing a presentation to show the ceo of his company. he wants to emphasize that the profits of their competitor have increased slowly over the past 16 months. the graphs below show the profit, y, of the competitor over the past 16 months. both graphs show the same information.