math_celebrity Administrator Staff member Nov 14, 2020 #1 A girl bought a skirts at $30 each and j jerseys at $15 each at a total cost of $285. Since cost = price * quantity, we have: 30a + 15j = 285
A girl bought a skirts at $30 each and j jerseys at $15 each at a total cost of $285. Since cost = price * quantity, we have: 30a + 15j = 285