A spring stretches to 18 cm with a 70 g weight attached to the end. With a 100 g weight attached, it stretches to 24 cm. Which equation models the distance y the spring stretches with weight x attached to it?

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?

Which expressions equal 9 when x=4 and y=1/3 a. x2+6y b. 2x + 3y c. y2-21x d. 5 (x/2) -3y e. 3x-9y

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?