Which function has a greater slope​

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

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b