1) Where is the slope of f(x) increasing? 2) Where is f'(x) increasing?

These are the only two parts I just can't get. Can someone help?

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Ineed with number 6 , explain how to get 1978

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