In 2010 the cost of Red Sox tickets were $55 each. In 2014, the price for the same ticket cost $75 each. What is the rate of change in price? (SHOW WORK)

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

If the discriminant if a quadratic equation is 4 which statement describes the roots?

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities