1. In Mr. B's classroom, there are 20 students. Twelve students got a B, one student got a C, and
the rest received an A. What percent of the class
received an'A?

Help please

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?