What is the order of operations needed to evaluate the expression 4 (5) -8 (divided)2

Marina baked cookies. she gave 3/4 of the cookies to the scout bake sale. she shared the remaining 6 cookies with her friends. how many cookies did marina bake?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?