Question

I think I got this wrong so can someone please help me and explain it to me

Answer 1

Answer:

the answer is c

Step-by-step explanation:

Becuase he is given 100 dollars and he uses 20 dollars a day, so you put x with 20 to calculate how many days that he can spend $20 on

Answer 2

Day 1: money spent = 20

Day 2: total money spent = 20+20 = 2*20

So, for x days, total spent money should be 20*x = 20x

At an instant, say, after x days.

=> saving = total amount - spent

=> money left = 100 - 20x

=> y = 100 - 2x

=> y = - 2x + 100