Answer:
the 3rd one
Step-by-step explanation:
So you have to plug in the amount to the cost making you problem look like this:
0.85(30)+2.5(2)
25.5+5=30.5

you just divide 2 by 10, which is
.2
Answer:
B
Step-by-step explanation:
0.80m
0.50c
1.40B
0.50(8)+0.80(16)
1.40(5)-12.8(3)
31.04 should be your answer, sorry if I'm wrong!