In 1984 there were 125 students for each computer in U. S. public schools. By 1998 there are 6.1 students for each computer. What is the percent decrease in the ratio of students to computers?

Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?