the length of a rectangular garden is three times of its breadth. a walk around the garden makes 400 meters. how much meters is the length of the garden

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Having a hard time understanding this question (see attachment).

Pleting the square f the given find the x-intercepts of the parabola with vertex (-5,13) and y-intercept (0, 12). write your answer in this form: (14,.99). if necessary, round to the nearest hundredth. *- h enter the correct answer, de verter, and ametry 00000 done doo