3/4 of Hari's marbles are black and 1/5 are green. What would be the ratio of black marbles to the green marbles?

Two parallel lines are crossed by a transversal.what is value of x

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Charlie tosses five coins.what is the probability that all five coins will land tails up.