The table represents a function. what is the value of f(-1)?
f (-1) = - 3
f (-1) = - 1
f (-1) = 0
f (-1) = 6

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 (%)

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?