18--10=
the two negative signs make a plus so you simply have 18 + 10 which is 28
Answer:
169.56 m³
Step-by-step explanation:
» <u>Concepts</u>
The volume of a cylinder is how much space there is inside the cylinder. The formula to find the volume is πr²h, where r = radius and h = height. Once you get the volume, you have to add <unit>³.
» <u>Application</u>
We are given the radius as three meters and the height as six meters; we also have to use π as 3.14. Now, we just have to plug in these values into the aforementioned formula.
» <u>Solution</u>
Answer: Mark up percent = 20%
Step-by-step explanation:
Given: Cost price of each T-shirt = $5.00
Amount required = $450
Total students = 75
Market price for each T-shirt to raise the required amount = (Amount required ) ÷ 75
= $450 ÷ 75
= $ 6
Mark up percent = 

Hence, Mark up percent = 20%
Answer: # 15 is x=-12 and #16 is x=24
Step-by-step explanation: