Need help please help mee.. (dont answer if u dont know how to do it)

Find the roots of the equation below. x^2 - 6 + 9 = 0

Gigi earned $65 for 5 hours of gardening. she earned $90 for 9 hours of office work. which statement correctly compares gigi’s earning per hour for gardening and office work? she earned $3 more per hour for office work than for gardening. she earned $4 more per hour for office work than for gardening. she earned $3 more per hour for gardening than for office work. she earned $4 more per hour for gardening than for office work.

Three lines meet at a point. set up and solve an equation to find the value of (a) is your answer reasonable? explain how you know