Ineed the slopes of these equations.

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Sandy is ordering bread rolls for her party,she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle