Use the function f(x) = 2x + 5 to complete the table below. List your answers in the order you
would write them in the table.

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

If you answer 2+2 you will get over 80 points

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).