You and your friend are saving for a vacation. you start with the same amount and save for the same number of weeks. you save $75 per week, and your friend saves $50 per week. when vacation time comes, you have $950, and your friend has $800. how much did you start with, and for how many weeks did you save? a. $500, 6 weeks b. $600, 4 weeks c. $650, 3 weeks d. $700, 2 weeks

The answer would be A. If you plug in the numbers to this equation:

800=50x+B and 950=75x+B, where B is the amount you started and X is the number of weeks you saved your money, you would get that the number of weeks you saved your money is 6 and the amount you started out with is $500

75(6)+500=950

50(6)+500=800

Hope this helped <3

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1