Mason’s backyard deck cost $45.00 per square meter to build. The deck is 9 meters wide and 10 meters long. How much did it cost to build the deck?

90 total square meters times 45$ per square meter is $4,050

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!