Solve the equation using mental math
a + 1/3 = 6/7

a) 1 3/21
b) 5/10
c) 7/10
d) 11/21

Julia chooses a card at random from her set of cards. what is the probability that the card is labeled cat or hamster?

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

What is the shape of the height and weight distribution