Answer:
The cost of 5 pounds of apples at $1.90 per pound is:
5 x $1.90 = $9.50
The cost of 1 1/2 dozen oranges at 50¢ an orange is:
1 1/2 dozen = 18 oranges
18 x $0.50 = $9.00
The cost of 6 avocados priced at 3 for a dollar is:
6 / 3 = 2 dollars
So we add everything they spend together:
$9.50 + $9.00 + $2.00 = $20.50
So the equation is:
$1.90(5) + $0.50(18) + $2(3) = $20.50