I need help with this expression 8(3x+4)-20

Ineed someone to me answer my question i have to have this done and knocked out

If u good at math hit me up on insta or sum @basic_jaiden or @ and

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.