What should be added to get –9 by 8 so as to get 12 by 16

Let the number should be x

-9/8+x=12/16

-9+8x/8=12/16

-9/8x=12/16*8

8x=6+9

x=15/8

$450.00 for 6 weeks

or

$300

step-by-step explanation:

$200.00 for first week $50.00 x5 equals $250 plus $200 equals $450.00 for six weeks.

$200 for first week

$200 x 0.10 = $20

$20 x 5 = $100

$200 + $100 = $300

step-by-step explanation:

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