Question

on a snowy day the amount of money Billy earns M varies directly with the number of driveways that he shovels D when he shovels 7 driveways he earns $80.50 how much dose he earn if he shovels 13 driveways

$149.50

$11.50

$161.00

$113.00

Answer 1

M=kD

Answer 2

D = 7

Answer 3

M = 80 . 50

Answer 4

D = 13
M = k D

Answer 5

149.5
is answer

Answer 6

answer?

Answer 7

M = k D
80.50 = k * 7
k = 80.50 / 7 = 11.5

Answer 8

M = k D
M = 11.5 * 13 = ? @samantha1995