Question

1: 9 11. The cost for a group of people to go to the movies is given by the expression 9a + 5b, where a is the number of adults and b is the number of children. What are the variables of this expression? of of A. 9 and 5 B. a and b C. 9a and 5b D. + and x

Answer 1

the variables are

a and b

where

a -----> is the number of adults

b-------> is the number of children.

answer is option B