I really need help with this question

Marion has a bicycle that she is planning to take for a ride. the rim of the rear wheel lies 41 cm from the center of the wheel. the tire itself has a thickness of 3 cm. in order for marion to ride her bicycle 96,712 cm approximately how many rotations will the rear wheel make?

Lines a and b are perpendicular. the equation of line a is y=13x+3. what is the equation of line b?

Marie daggett went to her bank each week and opened a club account. she deposited $21.75 per time period. if she made 12 deposits before interest was credited, how much would she have deposited before interest was credited? a. $9.75 b. $33.75 c. $181.25 d. $261.00