How do you solve this 8*[[(7+4)*2]-[(11-7)*4]]? i am trying to my son with his homework and sad to say i am 46 and i can't remember how to do this. if he had his book for me to look at and refresh i would.

Plz heeeeeeelp plz give me the answer

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?