What is the diameter of the circle if the circumference is 138.16

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

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?

Abowl contained 270 starbursts of all different colors. if the probability of picking a yellow is 1/9, then how many yellow starbursts are in the bowl ? ?