Simon invests in a medical company. he buys the stock at $189.35 and sells it for $167.78. what is the percent of decrease? round your answer to the nearest whole percent.

Atriangular bandana has an area of 46 square inches. the height of the triangle is 5 3 4 inches. enter and solve an equation to find the length of the base of the triangle. use b to represent the length of the base.

Diane owes $387 to her brother. if she debits her bank account $161.25 a month to pay him back, how many months will it take her to pay off the debt?

Factor this polynomial completely x^2-64