You buy some room furniture. the table costs $599.99 and 4 chairs cost 89.59/chair. how much is your total purchase?

The problem can be written as the following equation...

1(cost of table)+4(cost of chair)=total$spent
plug in the data
1(599.99)+4(89.59)=total$spent
599.99+358.36=total$spent
958.35=total$spent

Answer=958.35$

First, find the area of the piece of fabric, which is 40x38= 1520. (Base times height.)

Then you find the area of the scarf, (triangle.) 1/2x30x27 = 405 (half times base times height is area of triangle formula.)

Finally, subtract the area of the scarf from the fabric to see how much is left over. 1520-405= 1115

I tried to explain it so that it could make as much sense as possible. Sorry if it's a bit hard to understand.