6. Cass drove 3 miles to school, and then she drove m miles to a friend's house. The total mileage for these two 6 trips was 8 miles. Which equation CANNOT be used to determine the number of miles Cass drove?
A. 3 + m = 8
B. 3-m = 8
C. 8-3 = m
D. 8-m = 3

third option: 6x+8

step-by-step explanation:

we can see that the given question is a sum of series and the values of n vary from 0 to 3

the first term will be:

when n=0, [(0)*x+2] => (0+2) => 2

when n=1, [(1)*x+2] => (x+2) => x+2

when n=2, [(2)*x+2] => 2x+2

when n=4, [(3)*x+2] => 3x+2

so adding up all the terms will give us:

=2+x+2+2x+2+3x+2

=x+2x+3x+2+2+2+2

=6x+8

so,

third option is the correct answer ..

is there supposed to be a diagram or a graph for this one? ?

step-by-step explanation: