Fátima is saving up to buy a 300 bike she saves $25 eatch week from her babysitting money. Whitch linear equation represents the amount Fatima still has to save after x weeks

B

Step-by-step explanation:

B is right because she is earning money, so the slope would have to be positive.

Next, the y-intercept of the 300 needs to be negative because she does not have the money to start with. It is also negative because you can think of it that you are subtracting the final babysitting money with 300.

y = 25x - 300

Step-by-step explanation:

She has to save up 25 PER week and once she has enough, you subtract 300 since that's the cost of the bike

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

47 - 90 = 43

43 - 180 = x

x = 137