A circle has radius 10 centimeters. Suppose an arc on the circle has length `8\pi` centimeters. What is the measure of the central angle whose radii define the arc?

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

From the beginning of the day the temperature rose 15 degrees so that by 4 pm it was 87 degrees. what was the temperature at the start of the day

The half-life of iodine-131 is approximately 8 days. find the amount of iodine-131 left from a 42 gram sample after 16 days. a: 10.5 grams b: 21 grams c: 0.0006 grams d: 34 grams