I'm not sure what the question is but I think your asking 150-85=65
10x - 12 + 10 = 18 - 20
10x - 2 = -2
10x = 0
x = 0
Answer:
$171.12
Step-by-step explanation:
Including the tip and cost, it is 171.12. Multiply 148.6 by 1.15, which includes the total cost plus another 15% for the tip.
We can see that the diameter is 5 cm. Radius is simply half of the diameter.
5/2=2.5
The radius is 2.5 cm.
