i dont really know how to make a line plot/dot plot on here but, 20; 1 x 21; no x's 22; 3 x's 23; 5 x's 24; 12 x's and 25 15 x's. (or whatever you use, you dont need to use x's, remember to keep them the same size.)
Step-by-step explanation:
Can't be done without knowing what

is...
But I can tell you that the average value of

is given by

At the very least, we can compute the denominator, which is just the area of

. You have

so the average value will be
Answer:
y=62 degrees
x=160 degrees
Step-by-step explanation: