In Exercises 18 and 19, use the following information. Conversion The formula to convert miles m to kilometers k is m = 1.609k.
18. Write the inverse function, which converts kilometers to miles.
19. How many kilometers is 40 miles? Round to two decimal places.

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?

Find the power set of each of these sets, where a and b are distinct elements. a) {a} b) {a, b} c) {1, 2, 3, 4} show steps