Which system is equivalent to 3x^2-4y^2=24 -6x^2-2y^2=11

Ahigh definition tv cost $800 with a down payment of 2/5 of the cost. how much is left to pay, in dollars after the down payment has been made?

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.