Jillian walked 0.5 miles before she started jogging at an average pace of 5 miles per hour. the equation d = 0.5 + 5t can be used to relate the total distance, d, in miles to the time, t, that jillian spent jogging. what are the independent and dependent variables? the independent variable is distance and the dependent variable is time. the independent variable is time and the dependent variable is distance. the independent variable is distance and the dependent variable is speed. the independent variable is speed and the dependent variable is distance.

Aschool typically sells 500 yearbooks each year for 50 dollars each. the economic calls does a project and discovers that they can sell 100 more yearbooks for every $5 decrease in price. the revenue for yearbook sales is equal to the number of yearbooks sold times the price of the yearbook. let x represent the number of $5 decrease in price. if the expression that represents the revenue is written in the form r(x)=(500+ax)(50-bx). to maximize profit, what price should the school charge for the yearbooks? what is the possible maximum revenue? if the school attains the maximum revenue, how many yearbooks will they sell?

Which statements regarding the diagram are true? check all that apply.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?