A total of 108 people attended a charity event. The entrance to the event cost L 120. There was a discount of 20% for the elderly (which means that the ticket for them had a cost of L 96). If the total raised was L 12,216, how many seniors attended the event?

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.