13 + (3+7) = (13+3) + 7 what property is that

Find the area of a regular hexagon with the given measurement. 4-inch side A = sq. in. need it in square root form

The box plots show the average gas mileage, in miles per gallon, of cars and minivans tested by a certain company.

Find the sum (33x+99 ) + (minus-44x+88 )

Evaluate the function: f (x) = -6x+7 for f (2)

Two bags of apples weigh 8.4 pounds. How many bags of apples will fit in a box with a 50 pound weight limit?

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.