The area of this rectangle is 54 square inches. Create an equation to find the value of n

Name these type of angles shown check all that applies

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

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