What is the Square root of - 72?

It takes Benjamin twenty eight minutes to mow two lawns assuming the lawns are the same size and Benjamin works at the same speed about how long will It take him to mow five lawns

How to solve: 3x + 5 = x + 14

What is the least common multiple of 30 and 13

Mike runs in lane one around a curve, while Maurice runs in lane eight around a curve. The radius of lane eight is twice as big as the radius of lane one.

Max charges $3.50 per hour when he mows lawns, plus $6.00 for transportation expenses. Which function rule represents the amount y, Max charges to mow lawns for x, hours? I think it would be y = 3.50x + 6.00 Can someone confirm it?

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.