It costs $20 per hour to play pool and $3 for a cue stick rental. Write a verbal model and an algebraic expression to represent the cost for n hours of playing pool and identify the units for the expression.

Calculate the mass of 250ml of water with a density of 1.00g/ml

During a flu epidemic, the number of sick people triples every week. What is the growth rate as a percent? Explain your reasoning.

150 grams of fertilizer is required for a land area of six square meters, at this rate how many grams of fertilizer are required for a land area of 13 square meters

there are some pets in a pet shop. 36% of them are rabbits, 28% of them are dogs and the rest are hamsters. If there are 160 dogs and hamsters, how many pets are there in the pet shop altogether?

A pet store currently has a total of 45 cats and dogs. There are 7 more cars than dogs. Find the number of cats and dogs in the store. Write and solve a system of equations that represents the situation. Interpret the solution

The data represents the size of 9 randomly selected households. {4, 3, 2, 8, 5, 6, 3, 10, 3} What is the five-number summary?

What two products do you get when you cross-multiply the fractions 2/5 and 3/8? a 10 and 12 b 6 and 40 c 16 and 15 d 3 and 5

Identify how many moles are in 3.01 x 10 exp 21 molecules

How many times does 50 go into 100

What is the expression for "the difference between four times a number and three times that number"? 4 (3 - N) 4N - 3N 3N - 4N