I'll give the brainliest to the first right answer! Alexis counted 10 red cards and 20 black cards in a deck of cards. What is the ratio of red cards to black cards?

a) 1:1 b) 1:2 c) 1:2 d) 2:2

Mars has a surface gravity that is only 0.38 (a little over one-third) that of earth's. thus, the weight of an object will also be 0.38 times that of earth. what is the g.p.e. of a climber who weighs 675 newtons on earth at the top of 26,000-meter olympus mons?