It took Valerie 90 minutes to drive 120 miles. Which of the following unit rates expresses how fast Valerie was traveling?

Solve the following system of equations by substitution and select the correct answer below: 2x - 4y = 24 4x - 12y = 36 x = 18, y = 3 x = 18, y = - 3 x = - 18, y = 3 x = - 18, y = - 3

What is the definition of similar figures

Which board geometrically represents 4x2 - 1 using algebra tiles?

You need 1 1/4 cups sugar to make 20 cookies. To make 12 cookies, you will need how many cups of sugar?

What is the total surface area of a cuboid whose dimensions are 12cm x 8cm x 3cm?

The ratio in size of Gabriel's room to her brother Giorgio's room was 5:3. The area of Gabrielle's room was 240 square feet. If Giorgio's room was square-shaped, what was the length of his room?

A student estimates that it would take 3 hours to write a book report, but it actually took her 5 hours. What is the percent error?

Jerry makes 20$ an hour. He spends 30 dollars a day on transportation and food. Write an expression to describe his spending and earnings for the day, where x is the number of hours that Jerry works that day.

Find the percent increase for the given original and new quantities in parts a through c. a. Original quantity: 100 New quantity: 106 b. Original quantity: 10 New quantity: 16 c. Original quantity: 50 New quantity: 56 a.

What is - x^2+12x-32 in standard form?