Mary rent a truck from a truck-rental company that charges a flat fee of $20 and $5 per hour. If Mary rents the truck for h hours, the expression that shows the amount she has to pay is . If she rents the truck for 25 hours, the total amount she has to pay is .

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)

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