Please answer 1-5 i will give brainiest and 40 points

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)

Write a function rule for  “the output is  5 less than the input.” let  xx  be the input and let  yy  be the output.

How do you find the rate of change using a graph?