Need help on 6 and 7 asap! Will mark brainliest!!

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

Find two consexutive odd integers such that the sum of their square is 650