What happens when you add a positive and a negative number together

You've written your first novel and, like many first-time authors, can't find a publisher. So you've decided to self-publish your book. You need to work out the cost of printing the book.

How much more time is spent on health and medical care than transportation

Suppose there are 15 people in a room. each of those 15 shakes hands exactly once with everyone else. how many handshakes take place?

Cooper plantsand divides another garden into more than two equal parts. He parts. He plants potatoes in one part. He plants a different vegetablesin each of the other parts. Decide how many kinds of vegetables he will plant.

What is the average of 132 and 1/2 137 and 2/3

Can the numbers 24, 32, 40 be the lengths of the three sides of a right triangle? Explain why or why not.

The members of a knitting club are buying supplies for their next meeting. For the club, they need to buy a new patterns book for $3.50. For each member, they need to buy a set of knitting needles for $3.20 and a ball of yarn for $5.40.

If we multiply every observation in a data set by 2, the mean will

3x² - 6x - 24 = 0 0 4,-2 O 7.58,-1.58 O 2.65, 3 0-30, 36

For the dilation with center (0, 0) shown on the graph, your friend says the scale factor is 4. Is your friend correct or no? If he is incorrect, What is the correct scale factor? and what mistake did he likely make?