Answer:
72cm
Step-by-step explanation:
18x6=108
180-108= 72
b=6cm
Step-by-step explanation: remember area=(height)(base)1/2
3
288
x=14/5
Group like terms
2x+8x+7=35
Add similar elements: 2x+8x=10x
10x+7=35
Subtract 7 from both sides:
10x+7−7=35−7
Simplify
10x=28
Divide both sides by 10
10x/10 =28/10
Simplify: