Which of the following answer choices is a solution to a²=16

a. a=8
b. a=-8
c. a=16
d. a=-4

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.