A car rental charge is $100 plus $5.00 per mile traveled. Create an equation for the situation above.

X = 100$ + 5a$
Where X is the price of a car rent
And a is the amount of mile travel

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.

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