In math class, there are 35 students the class that took an exam. 20% of the students earned an A. How many students earned an A?

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

Can someone me do math because i am having a breakdown rn because i don’t get it

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4