The variable z is directly proportional to x. When x is 15, z has the value 165. What is the value of z when x = 25?

Liah is ordering 5 identical sandwiches and a bag of chips. The bag of chips costs $1.25, and the entire order costs $38.75. Write an equation you can use to find the price of a sandwich.

At a concession stand, five hotdogs and two hamburgers cost $11.50; two hot dogs and five hamburgers cost $13.00. find the cost of one hot dog and the cost of one hamburger.

In a fish tank 6/7 of the fish have red stripes on them if 18 on the fish have a stripes on them how many total fish are there in the tank

What's the square route of ten

Rajani can ride her skateboard 2 miles in 10 minutes how many miles can she ride her skate board in 1.5 hours

Roberto says that the opposite of a certain integer is - 5. cindy concludes that the opposite of an integer is always negative. explain cindy's error

Match the expression with its name. 3x + 7 A. linear monomial B. linear binomial C. cubic binomial D. quadratic monomial

Use compatible numbers to find two estimates: 42:396

A student bought 20 pencils for school if he sharpened 4 of the pencils before school what is his ratio of unsharpened pencils to sharpened to pencils

What are all the measure if angles