Under which of the following operations are the polynomials 8a + 14 and
3b - 9 not closed?

a. division
b. subtraction
c. addition
d. multiplication

What is the exact volume of the cylinder (radius 13 in., height 30 in.)

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

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²