Three towns are located on the earth's surface at the following coordinates :P(60°N,35°W),Q(75°N,145°E),R(60°N, 25°E). A commercial airliner A whose speed is600km/h flies from p to q using the shortest route possible . A similar airliner B takes off from P at the same time as A and flies to town R along the parellel of latitude. Both air lines fly at the same speed. Giving your answer to the nearest minute ,determine which airliner arrives at its destination earlier and by how long. Use radius of the Earth as 6370km(ans is airline B ,2h 47min could you please show me the working )

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?