Aubrey wants to join planet fitness. She has a coupon that will give her $7.50 off the monthly rate for the first four months. With the coupon, her total cost for the four months is $50. What is the regular monthly fee without the coupon?

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units