Brianna earned $28,000 last year. If the first $20,000 is taxed at 10% and income above that is taxed at 13%, how much does Brianna owe in tax?

What is negative 3/9 times negative 2/8 ?

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?