After 5 months you will have $160
so,
10
10×2 =20
20×2=40
40×2 =80
80×2=160
hence proved that after 5 months you will have $160
It’s the top right one. +4 for x then +2 for y. Explanation: Trust me it’s pretty easy. Good luck
After x months Ian owes 1000 - 60x
After x months Ken owes 600 - 20x
They're equal when
1000 - 60x = 600 - 20x
400 = 40x
x = 10
Answer: 10 months
