Answer:
Its 12
Step-by-step explanation:
The person up there explains it good
12
Simplify \frac{4}{5}G
5
4
G to \frac{4G}{5}
4G
.
\frac{4G}{5}+42=2.8G+18
+42=2.8G+18
Multiply both sides by 5.
4g + 210 = 14g + 90
Simplify
14G + 90 - 4G to 10G + 90
Subtract 90 from both sides.
210-90=10G210−90=10G
Simplify 210-90210−90 to 120120.
120=10G120=10G
Divide both sides by 1010.
\frac{120}{10}=G
10
120
=G
Simplify \frac{120}{10}
to 1212.
12=G12=G
Switch sides.
G=12G=12
SORRY ABOUT ALL THIS WORK...
Answer:a.100+(hx25)
b.120+(hx20)
c.4 hours
h=hours
19.6
