Find the lost common denominator of 3/4 and 5/8

Bring the fraction a/a-4 to a denominator of 16-a^2

The police chief wants to know if the city’s african americans feel that the police are doing a good job. identify the management problem (i.e dependent variable) and identify the independent variable.

Given: δabc, m∠1=m∠2, d∈ ac bd = dc m∠bdc = 100º find: m∠a m∠b, m∠c