A self-serve car wash charges $5.81 to use its facilities, plus an additional $0.77 for each minute the customer is at the self-serve car wash. If Tiffany was at the car wash for 7 minutes, how much was she charged? A. $6.58
B. $12.81
C. $11.20
D. $5.39

Which formula gives the area of a triangle? a=1/2(b+h)

Carson has only $20 bills and $10 bill in her wallet. the total value of the bills is $50. she has 1 more $20 bill than $10 bills. how many each kind of bill does carson have? a. one $20 and two $10 bills b. two $20 bills and one $10 bill c. one $20 bills and three $10 bills d. two $20 bills and two $10 bills

Acylinder and its dimensions are shown. which equation can be used to find v, the volume of the cylinder in cubic centimeters?