Answer:
you plug in the 3. so you get y= 3-4 which is -1
Answer:
V = 

Step-by-step explanation:
Volume of a cone is:

Substitute values given:


V = 
V = 

Answer:
24
Step-by-step explanation:
This can vary, some shapes have different area formulas, here are some basic formulas I can give you:
Circle: A =


Triangle: A =

Square: A =

Rectangle: A = L*W
Answer:
discount:deduct an amount from (the usual price of something).
tip:give (someone) a sum of money as a reward for a service
markup:the amount added to the cost price of goods to cover overheads and profit.
Sales tax:a tax on sales or on the receipts from sales