What do I do to get a grade 9 in maths gcse?

At a lunchron, guests are offered a selection of five different grilled vegetables and four different meats. in how many waya could one choose three vegetables and two meats?

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

Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens