7a to the 2 power - a to the 2 power + 16 = what

What is the median of 34, 16, 41, 20, 56, 81, 62, 74, 62, 12, 22, 50

Exactly one pair of opposite sides parallel

Ree is 27 inches tall on her first birthday she grows around 6inches per year after that what is the rate of change for the scenario?

Find the unknown. 531 = ( * 6) + 21

You have obtained the number of years of education from one random sample of 38 police officers from City A and the number of years of education from a second random sample of 30 police officers from City B.

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.