Find the interquartile range for the data set: 10, 3, 8, 6, 9, 12, 13.
a. 12
b. 8
c. 6
d. 7

Identify the number 127 as a rational or irrational. explain

Kayaks rent for $35 per day. which expression can you use to find the cost in dollars of renting 3 kayaks for a day?

Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g