Franks electric bill for the month of march was $85.78. the electric company charged a flat monthly fee of $20.00 for service plus $0.14 per kilowatt-hour of electricity used. approximately how many kilowatt-hours of electricity did frank use in march?

I got 469.8 kilowatt-hours. I got this by taking the total of Frank's bill, which was $85.78, and subtracting the flat monthly fee of $20.00. I did this because I need to find out the number of kilowatt-hours Frank used. Then, I divided $65.78 by $0.14 since that is the price per kilowatt-hour and got about 469.8 kilowatt-hours used by Frank.

which expression represents the approximate length of bc?

step-by-step explanation:

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12