a bag contains 8 red marbles and 12 blue marbles. jhon selects two marbles with replacement. (a) what is the probability of selecting two blue marbles? (b) what is the probability of selecting at least one red marble? (c) what is the probability of selecting a red marble first and then ablue marble? (d) what is the probability of selecting a red and blue marble? you have to use tree diagram and listing method

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.