Gianna paid $4.75 for a strawberry smoothie. she now has $12.35. how much money did gianna have before she bought the smoothie? the variable, m, represents the amount of money . the problem uses difference to determine the amount of money gianna started with, so it is a problem. the correct equation to solve this problem is .

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?