100 points please help or ill report (:

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?

Identify the expression equivalent to 4(x + x + 7) − 2x + 8 − 4 by substituting x = 1 and x = 2.

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.