For sailboats to travel into the wind, it is sometimes necessary to tack, or move in a zig zag pattern. A sailboat travels 5 km due North and then 5 km due West. From there the boat travels 4 km due North and 4 km due West. How far is the boat from it's starting point? Express your answer as a mixed radical.

What is the smallest integer n such that n\sqrt{2} is greater than 20

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase

Bo is buying a board game that usually costs bb dollars. the game is on sale, and the price has been reduced by 18\%18%. which of the following expressions could represent how much bo pays for the game? choose 2 answers: choose 2 answers: (choice a) a 0.82b0.82b (choice b) b 1.18b1.18b (choice c) c b-0.18b−0.18 (choice d) d b-18b−18 (choice e) e b-0.18bb−0.18b