Can someone me with peoblem number 5.6.7.8 and you asap

What is the rotational symmetry of a wheel

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance