Sam is 3 years younger then Marco. Marco is 15 how old is Sam

Which shape is an equivalent fraction to this fraction? 3/4 10/14 7/8 6/8 4/7

A person purchased two boxes of light bulbs for 90 dollars including shipping. How much is one box. Use 7x + 13

What's the slope of the line Y+1=3 (X+4)

A ball made out of a special material is inflated such that its diameter changes from 12inches to 15 inches. What is the approximate change in the volume of the ball?

What is 11.4 rounded to the nearest tenth

How many minutes is 4:15 pm to 5:00 pm?

You increase the amounts of ingredients in a recipe to make a proportional recipe. the original recipe uses two avocados and 0.25 cup of minced onions. the new recipe has 1.5 cups of minced onions.

A restaurant sells tea for 1.50 per cup. a group of 6 people orders drink. write a function for the cost of tea depending on the number of cups ordered. find a reasonable domain and a reasonable range.

Solve each system of equations by substitution or elimination. y=x^2-2x-1 y=-x^2-2x-1 Show all steps and explain what method you chose.

Is 7 a solution to the inequality below. yes or no? 4y - 10 > 20