Which expression has a sum of one and two twenty ones? A) three sevenths + two thirds
B) four sevenths + one third
C) five sevenths + two thirds
D) six sevenths + one third

Let w=23 . what is the value of w + 45 ?

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?