Answer:
21≤X<28
Or
X≥21+X<28
Step-by-step explanation:
Both equations mean the same thing
Equation:

3x+10 = 45+10 = 55
The answer is 55 because this is a isosceles triangle.
Answer:
18.3
Step-by-step explanation: Here i'll give you my notes for finding original price
1. make the percent into a decimal
2. subtract the decimal by 1
3. divide the number you just got and the decimal you got from the first step
Answer:
20
Step-by-step explanation:
2 1/2 = 5/2
5/2 x 4/1 = 20/1 = 20
(We are dividing fraction)
(keep change flip)
Josiah would need 10 gallons to travel 265 miles.
First we divide 79.5 by 3 to find out how many gallons are needed for one mile.
79.5/3=26.5
For one mile we need 26.5 gallons of gas.
Now we will divide 265 by 26.5 to find the answer to the problem.
265/26.5=10
Josiah will need 10 gallons of gas to travel 265 miles