Asum of $5000 was taken as a loan. after 1 year the money grew to $5500 by compounding annually. what was the rate of interest per annul?

a. 5%
b.8%
c.10%
d.12%
e. none of these

Alocal concert promoter purchases 2 3/4 pages of ads. when one of the concerts is cancelled, the promoter cancels 1 5/8 pages of ads. how much advertising space is the concert promoter actually using?

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

Is a positive integer raised to a negative power always positive