Which value represents the zero of the linear function Y= -3x + 21?
A.-24
B.-7
C.7
D.18

"princess tower" in dubai is considered the world's tallest residential building, towering to 1 0 1 101 floors! t ( n ) t(n) models the number of tenants living on floor n n of the tower. what does the statement t ( 2 0 ) = t ( c ) t(20)=t(c) mean?

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?