Ali is sledding down a hill. The graph shows her elevation as she sleds down the hill.

Which of the following describes the rate at which Ali's elevation changed?
A.
It decreased by 1 meter for every 2-second increase.

B.
It decreased by 2 meters for every 1-second increase.

C.
It decreased by 1 meter for every 1-second increase.

D.
It decreased by 0.5 meter for every 2-second increase.

16

step-by-step explanation:

2 x 40 = 80

80/5

= 16

answer: there are 453.592 grams in a pound.

ok

step-by-step explanation:

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.