A unit rate is a comparison of two different quantities where one of the quantities is expressed as a quantity of one. For example, if you travel 60 miles in 2 hours, the unit rate is 30 miles per hour.

To simplify a ratio, divide both terms of the ratio by their greatest common divisor (GCD). For example, to simplify the ratio 35:14, divide both by 7 to get 5:2.

A proportion is an equation that states that two ratios are equal. It can be set up as a/b = c/d, where a, b, c, and d are numbers.

Set up the proportion: 22 minutes/6 people = X minutes/17 people. Cross-multiply and solve for X.

The slope represents the rate of change, showing how much one quantity changes in relation to another. For example, in a graph of earnings over time, the slope indicates how much money is earned per hour.

A ratio is a relationship between two numbers indicating how many times the first number contains the second. For example, the ratio of 4 red apples to 3 green apples is written as 4:3.

To convert a ratio to a fraction, write the first term as the numerator and the second term as the denominator. For example, the ratio 5:2 can be written as the fraction 5/2.