Just do #5 . i couldn't get any answer that made sense

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

Solve 2x − 1 = 11 for x using the change of base formula log base b of y equals log y over log b.

Question 27 of 28 1 point what is the slope of the line shown below? (3,-2) (2,-4)