The system ⎧⎩⎨a2+b2−c2=05a−b=ca+b+c=30{a2+b2−c 2=05a−b=ca+b+c=30 has exactly one solution. find the solution by using substitution. enter your answer as an ordered triple in the format (aa, bb, cc), like this: (42, 53, 64)

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°?

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct