There are 1000 envelopes in unopened boxes in the office closet. If one box holds 250 envelopes, how many boxes of envelopes are in the office closet? ANALYZE A dump truck delivered four cubic yards of sand for the playground. The sand weighed five tons and 800 pounds. How many pounds of sand were delivered? The heights of the rose bushes in the garden are 98 cm, 97 cm, 100 cm, 109 cm, and 101 cm. What is the average height of the rose bushes in the garden? Identify the plot, write an equation, and solve the problem: Tucker purchased comic books. He paid with a $10 bill and received $3.25 in change. What was the cost of the comic books?

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 …

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experime…