Answer:
last one(960)
Step-by-step explanation:
80 percent of 1200 is 960
960
80% of 1200 is 960
x =417.6
0.5x+78.2=287
Subtract 78.2 from each side
0.5x+78.2-78.2=287-78.2
.5x =208.8
Divide each side by .5
.5x/.5 = 280.8/.5
Answer: There are no like terms