What is the step by step solution to 30m=80+22m you

What are “like terms”? why can we only add like terms?

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer

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?