In the coordinate plane, draw parallelogram abcd with a(–5, 0), b(3, –4), c(7, 4), and d(–1, 8).then demonstrate that abcd is a rectangle.

When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?