Calculate the variance and the standard deviation of the data below: 23, 19, 22, 30, 28

36.8 : 43.2 ratio simplified and can someone show me the steps on how to simplify ratios?

0.698 to the bestest hundreth

Solve and round if neccesary - 2x^2+18+7x

Is 5/8 or 2/3 greater?

A square has a perimeter of 36 millimeters, what is the area of the square

A family went to six Flags and bought two adult tickets and five child tickets and paid $160. A second family bought two adult tickets and eight child tickets and paid $220. How much is each adult ticket and each child ticket?

On December 1, there were 52 more tickets to the Spring Fling unsold than sold. At that time, the sold tickets represented 30% of the total tickets available.

Complete the square x^2+7x+11=0

A college student is interested in testing whether business majors or liberal arts majors are better at trivia. the student gives a trivia quiz to a random sample of 30 business majors and finds the sample's average score is 86.

A new board game comes with a deck of 20 cards: 5 red, 3 blue, 2 orange, and 10 green. After the deck is shuffled, the player is to choose the top card and note its color, replace the card, shuffle the deck again, and then choose the top card again