Answer:
18r
Step-by-step explanation:
since they both have r as their variable, they're like terms, meaning you can combine them
so 13+5 = 18
Answer:
$26.25
Step-by-step explanation:
multiply 350 by 0.075
Answer:
20 dollars for 12 pounds.
Step-by-step explanation:
This is a critically important question to know the answer to. It is used almost every day by good shoppers.
The trick is to get everything down to 1 pound.
$2.00
$2.00 per pound. The question is the answer.
$4.25
$4.25 / 2 pounds = $2.13 rounded.
$9.50
$9.50 / 5 = $1.90
$20
$20/12 = $1.67 rounded
In order to do this we need to make them both fractions, or both decimals. It's much easier to make them both decimals, as you can get

into decimal form by simply dividing 1 by 5.

If 1/5 = .20, then 1/5 is greater than .15!