Mr. Ivey teaches dance at the middle school. His classes are 90 minutes long, and he spend 94% of class time teaching strength and conditioning. How many minutes do Mr. Ivey’s students spend on strength and conditioning in each class? | please give me the answer in a step by step explanation|

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

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?