Whats 5 x 5 x 2 im just bored

Which of the following is true for the relation f(x)=2x^2+1

What is the solution of log2  (3x  -  7)  =  3? 4 5

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours