The table below shows the weekly change in Lena’s bank account for four weeks. Week
1 2 3 4
Week change in bank balance (in $)
+10.25 -19.50 +6.75 -5.25
1. What was the change in Lena’s bank account from the beginning of week 1 to the end of week 4?
2. At the end of week 4, her bank balance was $46.25 . What was her bank balance at the beginning of week
1?

Use the knowledge of x- and y- intercepts to choose the correct graph of the equation 3x+6y=6

Suppose there is a simple index of three stocks, stock abc, stock xyz, and stock qrs. stock abc opens on day 1 with 4000 shares at $3.15 per share. stock xyz opens on day 1 with 5000 shares at $4.30 per share. stock qrs opens on day 1 with 6000 shares at $4.60 per share. the price of stock abc on day 8 begins at $3.50. the price of stock xyz on day 8 begins at $3.90. stock qrs opens on day 8 with a price of $4.50 per share. assume that each stock has the same number of shares that it opened with on day 1. what is the rate of change of this simple index over 1 week?

Aline parallel to a triangle's side splits ab into lengths of x - 5 and x + 2. the other side, ac, is split into lengths of x and x + 12. what is the length of ac? a) 12 b) 24 c) 36 d)