Astudent simplifies (6b + 4r) – (2b + r) and says that the result is 4b + 5r. explain the error and describe the correct steps to simplify the expression.

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.