HELPP MEEE look at the pic

Which expression shows the sum of the polynomials with like terms grouped together

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice