A teacher has given a test to a group of students. The set of scores is: 78, 79, 79, 81, and 83. Find the population variance for this group of tests.

0.5 (x+1.6) + 1.4 (3x+2.4) = 9.8

If the population of a certain city increased 25% in two years, the nee population was what pecent of the old?

What is the approximate value of x in the equation below. log_3/4 25 = 3x-1

Which way would the graph of y=-|x+2|+3

If h (x) = - 4x - 10, find h (-5)

Turn 18 2/5 into a decimal

you invest $80 at a simple annual interest rate of 2.4% how much simple interest would you earn in 1.5 years. what would the monthly interest rate need to be to earn the same amount of intersest during the same amount of time?

What is 2.25 as a fraction

Suppose that two cards are randomly selected from a standard? 52-card deck.? (a) what is the probability that the first card is a clubclub and the second card is a clubclub if the sampling is done without? replacement??

In 5 h, you drive 400km. how much km could you drive in 1 h.