The cost for 4 lunches and six dinners is $122 the cost of five lunches and eight dinners is $160 find the cost of one lunch

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 appalachian trail is a hiking trail that passes through the appalachian mountains. three members of a teen hiking group hiked a section of the trail. the hikers stopped at a rest area and equally shared 3 4 gallon of water. how much water did each person get?

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?