Line ab contains points a(4, 5) and b(9, 7). what is the slope of āb?
-5/2
-2/5
2/5
5/2

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

Daniel bought a computer game for $25 and later sold it to thomas for a 40% profit. how much did daniel sell the computer game for?

Use sigma notation to represent the following series for 9 terms.