The population of a small town increased by 25% two years ago and then decreased by by 25% last year. The population is now 4500 persons. What was the population before the two changes?

How to do ratio step by step

Select the correct answer. If x is a number that is 7 more than y, how do you express xas a function of y?

What is three sixth of 72

Triangle ABC is dilated to get triangle A'B'C'. Which is the length of A'B'? 3 4 5 16

A=30 and AB=4 how long is bc

Evaluate x + y + z if x = 3, y = - 5, and z = - 2

Choose the correct standard form of the number. forty and nine thousandths. what is the correct answer? A. 49,000 B. 40.9 C. 40.009 D. 40.09

In this exercise, we estimate the rate at which the total personal income is rising in a metropolitan area. In 1999, the population of this area was 963,200, and the population was increasing at roughly 9300 people per year.

A box contains 3 items that are labeled a, b, and c. two items are selected at random (without replacement) from this box. list all the possible outcomes for this experiment.

A radio host plans to play one song from each of the three CDs he has by a single artist. The first song will come from a CD that has 12 songs. The second song will be selected from a CD that includes 14 songs while the third CD has 13 songs.