Adam's school is 12 miles from his house. It takes his older brother 20 minutes to drive him school. Adam spilled his orange juice his morning, and so they left the house two minute late than usual. How much time does his brother to day to dive him to school?

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

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 (%)