Who is the girl from the Nelk boy's video: We changed the QR code menus at restaurants to dirty websites, Timeline: 19:13?

When only separate discreet points are graphed it is called?

Which of the following is the true for f(x) = 5cos

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters