These questions down below are a bit confusing for me, if someone would help me with them I would be absolutely grateful thank you so much

How do you convert 1.27 to a percentage

If the value of x increases by 5, how does the value of m(x + 3) change? a) it increases by 5m. b) it increases by 8m. c) it decreases by 5m. d) it decreases by 8m.

Consider the set of all four-digit positive integers less than 2000 whose digits have a sum of 24. what is the median of this set of integers?