In an experiment a bag contains 2 blue marbles and 5 red marbles. Two marbles are drawn from the bag.

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

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°

Pls never taught i’m really confused and i rlly need