Hey, i need on this
solve the system by elimination.
⎧-2x+2y+3z=0
⎪
⎨-2x-y+z=-3
⎪
⎩2x+3y+3z=5
even just a start would me, i don't know what to do

1. what is the measure of ∠abc? what is the measure of ∠abd?

I’m still confused on how to work the percentages

The frequency table shows the results of a survey asking people how many hours they spend online per week. on a piece of paper, draw a histogram to represent the data. then determine which answer choice matches the histogram you drew. in order here is the.. hours online: 0-3, 4-7, 8-11, 12-15, and 16-19. frequency: 5, 8, 10, 8, 7 answer for the question is in the picture! : )