It is the first choice. All you have to do is isolate A from 2A so you would divide by 2 and get A=bh/2
Answer:
164
Step-by-step explanation:
2x+7+5x+12=180
7x+19=180
7x+180-19
7x=171
---- ----
7 7
x=164
Answer:B
Step-by-step explanation:
3/5 is used
2 1/2 gallons can be expressed as 5/2
1 1/2 gallons is the same as 3/2the fraction used is amount used over total amount
So (3/2)/(5/2) the 2 s cancel leaving you with 3/5