90. The original cost of a camera of a camera is 150 dollars, Now it decreased into 65 dollars.
Let’s solve for the percent of decreased in the price of the camera.
=> 150 = 100%
=> 65 / 150 = .43
=> .43 * 100% = 43%, 65 = 43% of the amount
=> 100% - 43% = 57%
Thus, the price of the camera decreased for about 57% of the original price and now only costs 43% of the original price.
First off you need to multiply 6 by 3 for how many miles she went and then divide the leftover total by two (For the last two hours) to realize she needs to run 4.1 mph.