The equation of line Ais y = 2x + 7. The equation of line B is y = -2x -4.
Are the lines parallel, perpendicular, or neither one?

5500 dollars is placed in an account with an annual interest rate of 6.5%. to the nearest tenth of a year, how long will it take for the account value to reach 19700 dollars?

Is a positive integer raised to a negative power always positive

The sum of the first eight terms of an arithmetic progression is 9m + 14. the fifth term of the06 progression is 2m - 6, where m is a constant.given that the first term of the progression is 26,find the value of the common difference, d and thevalue of m.