Can someone help please ?

Mathematics

1 answer:

dexar [7]3 years ago

3 0

Average rate of change is defined by (y^-y)/(t^-t) where the ^ means the final(so final y and final t)
So you'd do (8.75-2.75)/(12-4) which is 6/8 which is 3/4 of a dollar per week

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