Blake builds birdhouses to sell. He spends $3.80 on wood, $0.30 on nails, and $1.00 on paint for each birdhouse. If each birdhouse sells for $15.00, how much profit does Blake make on a birdhouse?
The answer would be $9.90 and the way I did it was. First I made the numbers not with decimals so 380 30 and 100 and then add them together to get 510 then 1500-510= 990 so it would be $9.90
