Answer:
7/20 = x/400
Step-by-step explanation:
First we have the work out the area of 1 room. So that is 8ft * 12ft which is 96ft^2. And if there are 2 of these rooms, then we multiply this value by 2. Giving us a total area of 192ft^2.
She can have 3 groups of tens and 8 groups of ones
The price of the item is now $180
