Answer:
12
Step-by-step explanation:
you can pack one pack in 20 min
there are three 20 min in one hour
multiply three times the four hours and you get 12
A,B,E
C in case y=1, im not entierly sure what is implied by identity unless youre talking composition or inverses
I think it's-0.032 I hope this is correct
5d<32+13
5d<45
D<9
Just simplify as much as you can.