6x is an example of a variable
64
4 x 10 = 40
4 x 6 = 24
(40)+(24) = 64
Answer:
D. Starla and Lewis will have the same balance in their accounts after 7 months.
Answer:c
Step-by-step explanation:
Given

and 
m of n is given by replacing x in
by x-3

can take any value of x except x=4 because at x=4 function is not defined
and
is also not defined for x=4 and can take any value of x