A multiple choice test consists of 100 questions. A correct answer is worth 2 points, while an incorrect answer is worth -1 point. If a student receives a score of 80 points, write a system of linear equations to help solve for how many questions this student answered incorrectly.

Apolynomial function has a root of –6 with multiplicity 1, a root of –2 with multiplicity 3, a root of 0 with multiplicity 2, and a root of 4 with multiplicity 3. if the function has a positive leading coefficient and is of odd degree, which statement about the graph is true?

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,