If n(U)=80, n(A)=40 and n(B)=30, find the maximum value of n(AuB)complement and minimum value of n(AuB)complement

Solve 2x2 + 8 = 0 by graphing the related function. there are two solutions: . there are no real number solutions. there are two solutions: 2 and -2

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

For the inequality |c| < |d| to be true, which of the following must be true?