How do I do this example 8 (10a-4) + 5a and 5a-12 are equivalent? Is she correct?

A road crew can repave 1/30 miles of road each hour. They must repave a road that is 2/5 miles long. How long will it take the crew to repave the road? Write your answer in simplest form.

Jared is 54 inches tall. Kobe is 5'1 tall. Who is taller

How to express 92.96 million as a mixed number in simplest form

Which of the following are in correct order from greatest to least? pi/2, 330°,5pi/3,7pi/6,2pi/3 5pi/3,7pi/6,2pi/3, pi/2, 330° pi/2, 2pi/3, 7pi/6, 5pi/3, 330° 330°, 5pi/3, 7pi/6,2pi/3, pi/2 (answer is D)

There are 240 members in a marching band. For a competition, only 216 of the members will march in groups of 12. How many groups are in the competition?

How many pairs of parallel sides does a trapezoid have? A) none B) one C) three D) two

Mary roller skates with a constant speed of 8 km/h. How long will she take to travel a distance of 16 kilometres?

What is the answer for 4x+7=5

Simplify: - |-10| + 3-39/4

Solve 4 (x + 6) = - 2 (x - 1)