If a high school with 330 students wanted a ratio of 15 students per teacher, how many teachers would they need?

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

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.