At the market, 8 apples cost \$4 dollar sign, 4.
How much do 9
apples cost?

okay, so first we're gonna take 4 and divide it 8

this will give us the total amount of each individual apple

4 ÷ 8 = 0.5 or 1/2now take 9 and multiply it by 0.5 or 1/2 to give us the total amount of 9 apples9 × 0.5 = 4.5 so the cost of nine apples is 4 dollars and 50 cents { we write 50 cause its in money :) }

hope that helps :))

7x the number of visitorsex. 3 visitors would be 7 x 3 =21$ total