What does a+2b=if a = 6

At a pet store, it costs $5 to wash a cat and $7.50 to wash a dog. Last week, the store made $60 dollars from washing cats and dogs. If 6 cats were washed, write and solve a linear equation to find how many dogs were washed.

What is the quotient of 6/4 and 3/14

Lena's fish tank has 19 liters of water in it. she plans to add 4 liters per minute until the tank has at least 43 liters. what are the possible numbers of minutes lena could add water?

A machine shop is manufacturing a pair of gears that need to be in a ratio as close to 1.1839323 as possible, but they can't make gears with more than 50 teeth on them. How many teeth should be on each gear to best approximate this ratio?

Find the pair of numbers whose sum is 46 and whose product is a maximum.

The list of ordered pairs below represents a relation. { (-6,10), (-5,4), (-1,-9), (9,-4) } Find the range of the relation.

How to do number lines

John has 7 apples and then he gives 3 to his friend. How many apples does he have? Mutlipy by 2

Evaluate the expression. 4 5 + 3 5 - 2 5 : 1 3 Write your answer as a fraction or as a whole or mixed number.

Negative two minus seventeen plus twelve minus negative four