in a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Alice has scored 84, 94, and 79 on the first three. What range of scores on the fourth test will give Alice a B for the semester (an average between 80 and 89, inclusive)? Assume that all test scores have a non-negative value.

What is the percent of increase for a population that changed from 438,000 to 561,000

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.