UGH MY BABY AT WORK PLS FU CK ME UNTILL HE GETS BACK!

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

With both problems. a. s.a. p directions on photo ^

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?