Mikey buys a kiwi, a lemon, a mango, and a nectarine. His total bill is $2. Write an equation that relates the cost of each of these items to the total cost.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Arestaurant charges $100 to rent its banquet room for an event. it also charges $15 to serve dinner to each guest. write an equation for the total cost of the banquet room in terms of the number of guests. deine your variables. what is the total cost of the banquet room for 20 guests?

3x + 4y = 5 x- 3y = -7 solve by substitution