How do you solve this equation (in the picture)? a friends son with his math homework. it has been 20 years since i've done did it poorly back then.

m∠ACB=64°

Step-by-step explanation:

we know that

Alternate interior angles are formed when a transversal passes through two lines. The angles that are formed on opposite sides of the transversal and inside the two lines are alternate interior angles. If the lines are parallel, that the alternate interior angles are equal.

In this problem, the transversal is the segment BC and the lines are line m and segment AC

The lines are parallel

so

m∠ACB=m∠2> by alternate interior angles

we have

m∠2=64°

therefore

m∠ACB=64°

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b