Some fifth-grade students made a video. The video is 8 minutes long, and 3/5 of it shows the school photos of all the fifth-grade students. Each school photo is shown for 3 seconds. What is the total number of fifth-grade students? Enter your answer in the box.

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Nick and nora are married and have three children in college. they have an adjusted gross income of 47,400. if their standard deduction is 12,600 itemized deductions are 14,200 and they get an exemption of 4000 for each adult and each dependent what is their taxable income