What is the coefficient in the expression 5+ 9y5+9y5, plus, 9, y?

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)