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solve the given linear-quadratic system graphically. how many points of intersection are on the graph? show all work.

y = x^2 – 5x – 4
y = –2x

Sketch one cycle if the cosine function y=2cos2theta

The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

You have 12 balloons to blow up for your birthday party. you blow up 1/3, and your friend blows up 5 of them. what fraction of the baloons still need blowing up