it's to 2.5 cuz u divide 5/2=2.5
Answer:
C 
Step-by-step explanation:
Answer:
a) 432y
b) -72a^2
c) -6a - 5ab
d) 104y-46
Step-by-step explanation:
Because some of the work input is turned into waste byproducts like heat. A simple machine has friction to overcome, and by doing that heat is created