Evaluate y (-7) + x7
when x= -7, y=7

Question 5 of 10 2 points if a population is a sample of the population could be a. registered voters; all citizens o o b. baptists; all religious people o c. people who purchased shoes; all customers o d. the entire school faculty; math teachers

I’m really confused and need your assist me with this question i’ve never been taught

3.4a=57.8 what is the the value of a