3
6x
21(x + 1) 21(x + 1 )
.

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

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?

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?