Line m has positive slope. Which of the following is true? A. The slope of a line parallel to m is positive.
B. The slope of a line parallel to m may be positive or negative.
C. The slope of a line perpendicular to m is positive.
D. The slope of a line perpendicular to m may be either positive or negative.

The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

If the scale factor between two circles is 2x/5y what is the ratio of their areas?