Compare 9 . 10^4 to 3 . 10^2
a. 9 . 10^4 is 3 times larger than 3 . 10^ 2
b. 9 . 10^4 is 30 times larger than 3 . 10^2
c. 9 . 10^ 4 is 300 times larger than 3 . 10^2
d. 9 . 10^4 is 3000 times larger than 3 . 10^2

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

Acompany charges $0.10 for each letter engraved. bobby plans to spend no more than $5.00 on the engraving on a jewelry box. write and solve an inequality to find the maximum number of letters he can have engraved.