PLZ HELP FAST
Each summer, Gina picks blueberries at a local berry farm. She can pick 5 1/4 pounds of blueberries each 1/3 hour. Gina is paid $0.75 per pound of berries that she picks. How much does Gina make per hour?

$21.00 per hour
$11.81 per hour
$1.31 per hour
$15.75 per hour