A certain refrigerator requires 170 watts of electricity when it is running. It typically runs about 20 minutes per hour. How much does it cost to run this refrigerator for one year if the cost per kWh is $0.11?

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a