Lee has two containers of solder available. One has 20% tin and the other 50% tin. How much of each must be used to make a 20lb mixture that is 35% tin

Abank gives 6.5% interest per year. what is the growth factor b in this situation?

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

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 (%)