Ray has $200 and earns an allowance of $50 per month. His sister Amber has $300, but her allowance is only $25 per month. In how many months will they have the same amount of money? Please show your work.

They will have the same amount of money in 4 months

Step-by-step explanation:

In month 1..

Ray: $250   Amber: $325

In month 2...

Ray: $300   Amber: $350

In month 3...

Ray: $350   Amber: $375

In month 4...

Ray: $400   Amber: $400

step-by-step explanation: h: (- 3, 6)

m: (1, - 2)

o: (7, 6)

r: (- 9, - 2)

midpoint of hm: (- 1, 2)

midpoint of or: (- 1, 2)

therefore, b is the midpoint of both diagonals bisect each other !

to prove the diagonals are perpendicular, show that the product of the slopes = - 1