2. A contractor is building a set of stairs out of concrete. Each stair is exactly the same length, width, and height. (a) Which solid figures can the stairs be broken into? What are the dimensions of each solid figure?
(b) How much concrete will be needed to form the stairs?

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168

answer: given the scale 3,5 mm to 1 foot: so you know this and you need convert this 150mm to get the right answer.