Show work if u can please

What is the rotational symmetry of a wheel

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

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