PLZ Help What is the ratio of the smaller circle's area to the larger circle's area?

Give your answer in fully simplified form. It should look like "x:y", where x and y are replaced by integers.
[asy]
size(4cm);
pair o=(0,0); pair x=(0.9,-0.4);
draw(Circle(o, sqrt(0.97)));
draw(Circle((o+x)/2,sqrt(0.97)/2));
dot(o); dot(x); dot(-x);
draw(-x--x);
[/asy]

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

Answer asap evaluate 4-0.25g+0.5h4−0.25g+0.5h when g=10g=10 and h=5h=5.

Plz hurry evaluate the expression a+b where a=8 and b=19