1. F= {x 1 x is multiple of 3} 2. E = {x I x is prime number} 3. G = {x 1 x is number greater than 18}​

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 (%)

Solve the triangle. a = 21°, c = 105°, c = 5

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?