The very busy freshman class is selling tickets for an upcoming field hockey game. The class sells 20 more students tickets than adult tickets. The adult tickets cost $4 and the student tickets cost $2. The class made a total of $280 from ticket sales. How many of each type of ticket did they sell? Elaborate and clarify your reasoning.

1a. Define the variable in this system.
b. Create equations to describe the relationship in this system between the variables.

2. Solve the system of equations by using substitution method.

How many terms does the polynomial x^2 y^2 have

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?

The federal reserve controls certain interest rates in the united states. investors often try to speculate as to whether the federal reserve will raise or lower rates and by how much. suppose a company conducts extensive interviews with financial analysts, and as a result, predicts that "thefed" will increase rates by an average of 0.25 percentage points every six months for the forseeable future. which type of equation could be used to model the predicted interest rates over the next several years, assuming no other significant changes? a) a linear equation b) a quadratic equation c) a polynomial equation d) an exponential equation