True statements about rational numbers and whole numbers and integers 7th grade help please :)

Ican figure out 20 shares multiply by $117.98 =2359.6920 shares multiply by $124.32=2486.40then take 40 shares multiply by $128.48=5139.20after that i'm lost any be greatly appreciated.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

As a salesperson you get $50/day and $3.60/each sales you make. if you want to make $60 in one day, how many sales would you need need to make ? a 3b 4c 5d 6 show work.