Alyssa bought 2 packs of football cards for $4.52 each, and a deck of Digimon Cards for $11.47 with two $20 bills. Alyssa found $7.72 in her pocket. How much change
did Alyssa get?

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

How would you find the height of points on the circle? the topic is trigonometry.