Suppose a heat exchanger costs $1200 and reduces the heating bill by $200 per year what is the payback time?

How to Simplify 8/10

Rosy has 16 pencils and 24 erasers. She is putting together packets that will have an equal number of pencils and erasers in each packet. If Rosy uses all of the pencils and erasers, what the the maximum number of packets she can make?

By October 19th, Gordon had read 35 pages. Starting on October 20th, he decides to read the same number of pages each day until he finished the book on October 30th. Write and solve and equation to represent the situation.

What is diameter=18.2 mi

The counting numbers and zero are

There are eight runners in the 100-meter dash. In how many ways can the runners finish first, second, and third? 1. 72 2. 6 3. 120 4. 336

A contractor was hired to remodel a kitchen. she can complete 3/8 of the kitchen remodeling project in one day. how much of the kitchen is left to remodel after two days?

The function for the cost of materials to make a biscuit is f (x) = four-fifths x + 4, where x is the number of biscuits. The function for the selling price of those biscuits is g (f (x)), where g (x) = 4x + 5. Find the selling price of 15 biscuits.

Lori needs at least 12 liters of water to fill a water cooler. She has a container with 4.55 liters of water, a container with 3.25 liters of water, and a container with 4.85 liters of water. Does she have enough water? Use estimation only to decide.

What improper fractions are equal to 8?