Question

Please help and explain A B C D

Answer 1

For D

subtract $25 from $425 you will be left with $400 that is the total with out the addition $25 in which Gavin earned more of.

You are now left with $400 for both Gavin and Seiji
because they are 2 in number divide the money by 2 which will give you $200 each, then add Gavin's extra $25.

Gavin earned $225
and Seiji earned $200

Answer 2

A) Amount of money earned by seji = s
Amount of money earned by Gavin = g
So, equation would be: s+g = 425

B) Solving the system: s+g = 425
we know, g = s+25
Substitute it into the equation:
s+s+25 = 425
2s = 400
s = 200
so, g = 200+25 = 225

C) Graph for the equation, Mark (s,g) = (200,225) then, draw the line from the origin.

D) Seiji earned = $200
Gavin earned = $225 [ Solved in B part ]

Hope this helps!