Which of the following is the equation of a line that contains the point with the corrdinates (1,4)?

a.2x - y = 1
b.2x - y-=-3
c.2x - y = -2

answer: (c) 2(1) - 4 = -2

Joel noticed that the price of gas is now $3.29. Two months ago it was $2.96 per gallon. What was the percent of increase?


Answer: 11.15%

Susan bought a sweater that cost $96.00. She paid a total of $101.75. What % did Susan pay in sales tax?

Answer: 6%