College Algebra help please.?

Hello, so I’m almost done with my algebra assignment this week but I’m having issues with the below questions. Can anyone help me with these? Thanks!
Evaluate for x = -3 in 3x^2 - 5x + 7
Suppose the total price for a television, including 6.5% tax, was $403.64. How much tax was paid?
Find the slope of […]