The sum of the geometric series is 195
1st part: 3x9x3
2nd part: 3x6x9
3rd part: add the product of those two steps
you have to break it down into two rectangular prisms and find the volume of each and then add
M-5-(-12) would equal m+7 because there is a negative before the parentheses and in the parentheses which means you would change it to a positive so, negative 5 plus positive 12 is 7 and since the 7 is positive you would add m (hope this helped)
Since the point satisfies the equation
y = x +3
you have
b = (-3/5) +3 = 12/5 . . . . . . . matches A. 12/5
