What is the axis of symmetry for f(x) = 2x2 − 4x + 5?

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

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.