Answer:
The sale price is 
The expression is 
Step-by-step explanation:
we know that
The sale price is equal to subtract the discount price from the original price
The discount price is equal to multiply the original price by the percent discount in decimal form
Let
x ----> the sale price
y ---> discount price
----> percent discount in decimal form


substitute

therefore
the expression is

Volume of a sphere is 4/3(pi r ^3)
You were given d = 10 so r = 5
Then just plug and chug
Answer:
20 oatmeal cookies
Step-by-step explanation:
4/5 of 25 is 20
If you are working on proportions, you can do 4/5=x/25
It's 40 n 56 then 30 n 15 then 20 n 30