Need with this worksheet. algebra 2 polynomials

To complete your spring schedule, you must add calculus and physics. at 9: 30, there are three calculus sections and two physics sections; while at 11: 30, there are two calculus sections and three physics sections. how many ways can you complete your schedule if your only open periods are 9: 30 and 11: 30?

Find the vertex of the function given below y=x^2-6x+1

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²