Donnovan earned 99 points on his science project. if his grade was a 90%, how many points were possible

Which of the following will form the composite function?

Mallory has been offers two different jobs. she can baby sit for 6 hours a week and get $8.50 an hour. or she can work at the library for 14 hours a week and make $5.50 an hour. which job will allow her to save the most money after 6weeks?

100 points and 1- -12=y-36 2- x/25=-25 3- -n=40