I am so confused can someone help me asap??

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

What signals you that factoring by grouping is the best method to use when factoring a problem?

Brady has a 20 year fixed rate mortgage for $215,500 with monthly payments of 1,305.89.the annual interest rate is 4%. what is the total cost of the principal and interest for this loan rounded to the nearest dollar