If A = 254.34 square feet, what is r?

Which expression is less than - (-|4.2|)

The rain barrel shown is a right circular cylinder. If 1ft^3=7.5 gallons, how many gallons of rainwater can the barrel hold if the height is 5ft and the top of the barrel is 1.68ft?

What is 48,100,000,000,000 in scientific notation? 1. 4.81*10-11 2. 4.81*10-13 3. 4.81*1011 4. 4.81*1013

Write the decimal as a fraction or a mixed number in simplest form. 2.5

Slope is - 1/2 and y-intercept is - 2

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.