Help please see question below

:)

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.

What is the sum of these mixed numbers 4 2/3+ 3 1/9