Answer:
2.5=150, 180=3, 5=300, and 390=6.5
Step-by-step explanation:
I used a calculator
5/12
4 and 3 gcf is 128/12 - 3/12 = 5/12
252mmSquared
28+28=56
74-56=18
18÷2=9
9×28=252