A drawer contains 10 blue pens. 10 black pens. and 10 red pens. Without looking
Mr. Lopez is going to take one pen from the drawer, use it, and then put it back into
me drawer. Then he is going to take another pen from the drawer to use. What is
the probability of Mr. Lopez taking a red pen first and then taking a blue pen?

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

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.

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer