The current in a 120-v reading lamp is 2.4 a. if the cost of electrical energy is $0.090 per kilowatt-hour, how much does it cost to operate the light for an hour? (do not round to the nearest cent.)

One integer is 8 times another. if the product is 72, then find the integers

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

Using elimination, what is -4x+2y=-12 4x+8y=-24