The highest elevation in a city is 25 feet. The lowest elevation is 8 feet below sea level. Express the range of elevation of the city as a
subtraction expression and an addition expression.
O-8-(-25); -8 + 25
08-25; -25 + 8
25 - (-8); 25 + 8
25-8:25 +(-8)

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?

What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table? group 1: a 15 b 45 group 2: a 20 b 25

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m