rowan sells a dress for $42.60 after making a profit of 20% on the cost price. calculate the cost price.

35.5

Step-by-step explanation:

let the cost be X

if 120% is 42.60

then how much is 100%

X=42.60*100/120

X=35.5

4.

step-by-step explanation:

it have the same area.brainliest

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x