What is the best classification of -60 in the real number system?

Officer brimberry wrote 24 tickets for traffic violations last week, but only 9 tickets this week. what is the percent decrease? give your answer to the nearest tenth of a percent.

Witch represents the inverse of the function f(x)=1/4x-12

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'