Find the measure of BC

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

Ineed to know the answer to this algebra question.

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?