The sophomore class at south high school raised $800 from the sale of tickets for the dance. tickets sold for $1.50 in advance, and $2.00 at the door. if a total of 475 tickets where sold, the number of tickets sold at the door is [ ]?
no work needed.

Tom is making a punch that contains 80% cranberry juice and the rest ginger ale. the punch has 2 liters of ginger ale. part a: write an equation using one variable that can be used to find the total number of liters of cranberry juice and ginger ale in the punch. define the variable used in the equation and solve the equation. hint: 0.8x represents the number of liters of cranberry juice in the punch. (5 points) part b: how many liters of cranberry juice are present in the punch? show your work.

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16