Awoman wants to hang threeidentical red flags and twoidentical white flags in a row. how many different arrangements are there

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)

Which has the greater energy, light of wavelength 519 nm or light with a frequency of 5.42 x 10^8 sec^-1?

What is the volume if this rectangular prism: 5/2 cm by 3/4 cm by 1/3 cm