You multiply 3.14 by the diameter or 2 times the radius
for area you do pi or 3.14*radius squared
Multiply the cost of an item or service by the sales tax in order to find out the total cost.<span>Make sure you put the sales tax into decimal form. You do this by taking the percentage and sliding the decimal point two places to the left: ...<span>Example: $60 (item cost) x .075 (sales tax) = $4.5 total sales tax.</span></span>
-24x + 8y = 16
+24x +24x
8y = 16 + 24x
8y/8 = 16/8 + 24x/8
y = 2 + 3x
Answer: y = 2 + 3x
The 4 is in the ten thousands place
