To solve 16x18, i double and halve?

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each,and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent.how much did jame pay at the end?

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

Which graph represents the linear function below? y-4= (4/3)(x-2)