The ratio of the number of boys to the number of girls in Mr.
Jefferson's class is 2 to 3. If there are
18 girls in Mr. Jefferson's class, how
many boys are there?

Let the number of boys and number of girls be 2x and 3x respectively.

Then,

According to question,

Number of girls = 18

or, 3x = 18

or, x = 6

Number of boys = 2x = 12

Therefore, the total number of boys is 12

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

have a good day!