*i will mark u branliest and give 40 points if u answer all three*

1.) the scale drawing of an artist's work has a scale of 1 inch = 18 inches. the scale drawing is 5 inches and 6 inches long. find the size if the original work.

2.) the scale for a drawing of a barn is 1/2 inch = 4 feet. if a pole in the drawing measures inches, how tall is the actual pole?

3.) monica made a scale model of a helicopter. if the scale is 1 inch = 3 feet, and the model is inches tall, how tall is the actual helicopter?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −

Which of the following is a function? click on the graph until the correct graph appears.