If a space heater draws 10 amps from a 120-volt household circuit, and electricity costs 100 per
kilowatt-hour, how much has it cost to run the space heater for 3 hours? Note that a watt-hour is
equal to 1 watt of power used for one hour.
A. $0.12
B. $0.36
C. $1.20
D. $3.60
E. $4.28

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.