Solve the system by graphing. what is the solution?
A. (2,4)
B.(2,-4)
C.(-4,2)
D. (4,2)

How do you multiply a mixed fraction by a regular fraction

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

Plz ( true - false) all triangles have interior angles whose measure sum to 90.