Ms. chang has 24 students in her class, and 8 of them are boys. what is the ratio of girls to boys? a) 1: 3 b) 1: 4 c) 2: 1 d) 2: 3.

can someone me: the midsegment through the legs of an isosceles triangle is 4 in. find the sides of the triangle if its perimeter is 20 in. ,   and point g is the centroid of the right △abc with hypotenuse ab=18 in. find cg.