The spoke of a wheel reaches from the center of the wheel to its rim. if the circumference of the rim the wheel is 48 inches, how long is the spoke? use 3.14 for pie, and round your answers to the nearest hundredths. a. 15.29 inches b. 12 inches c. 8 inches d. 7.64 inches

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Having a hard time understanding this question (see attachment).

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319