I am doing graphs but I'm struggling a lot with this

Answer:
Stem and Leaf Plot ⇒ Makes it easy to see the largest, smallest and most common data values.
Double Bar Graph ⇒ Compares two sets of data.
Bar Graph ⇒ Shows whether one type of data increases, decreases or neither when another type of data increases.
Scatter Plot ⇒ Shows the frequency of results and trends clearly.
Step-by-step explanation:
Stem and Leaf Plot makes a set of data easy to see and shows common data values together.
Double bar graph is the only graph that focuses solely on 2 sets of data.
Bar Graph description is a bit weird for this one to me but it's the last one (I did others first) and it is close enough.
Scatter plot is best at showing frequency and trends and to see the approximate increase/decrease of many data points.