What is the greatest perfect square in 650

Mrs. Gehrke said Cheddar weighs 16.8 pounds. He actually weighs 15.2 pounds. What is the percent error?

Mari has 28 wooden cubes. She wants to stack them to form a triangle. Each row will have one fewer than the row below it. How many cubes will be in the bottom row?

A wire 8 meters long is cut into two pieces.

The principal likes to keep the ratio of students to teachers at 24:1. If he has hired 32 teachers, then how many students are expected to enroll?

What is the opposite of - 17

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.