The math clus is selling raffle tickets for the Fall Ball. The raffle tickets cost them $0.08 each at the office supply store and they spent $55 making t-shirts for the club members to wear. They are selling the raffle tickets for $2 each. If x represents the number of raffle tickets they sell, the following functions can be used to represent this situation where C(x) is the club's costs and R(x) is the amount of revenue they make selling the tickets. C(x) = 0.08x + 55
R(x) = 2x

Which of the following functions represents the profit, P(x), made by the math club during the raffle ticket sale?
P(x) = 0.16x^2 +110x
P(x) = 2.08x + 55
P(x) = 1.92x + 55
P(x) = 1.92x - 55

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The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Hurry if the population of of an ant hill doubles every 10 days and there are currently 100 ants living in the ant hill what will the ant population be in 20 days