Ryan has $24 in savings and will save all the money he earns from delivering newspapers. he earns $8 per hour for delivering newspapers. which equation could be used to find the number of hours (r) ryan must work to save exactly $100? a. 8r – 24 = 100 b. 24 + 8r = 100 c. r/8 + 27 = 100 d. 8(r + 24) = 100

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?

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

How do you write something in scientific notation?