How would you find the registration fee for a car weighing 2,200 pounds if $17.50 is charged for the first 2,000 pounds and $.30 is charged for every additional pounds over 2,000?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.