Plz fast have too finish homework so, i can have time for my mom and dad and lil sis and my grandpa and my grandma you will crown brainlliest you happy halloween mwahahahahahahahaha lol

Solve the system. -a+4b+2c=-8 3a+b-4c=9 b=-1 a.(0,11) ,-1,2) c.(1,1,-2) d.(2,-1,-1)

What is the area of the triangle 10 13 12

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.