Hello,
7x-4y=-8 (1)
y=3/4x-3==>3x-4y=12 (2)
(1)-(2)==>4x=-20 ==>x=-5
if x=-5 then (1)==>4y=-35+8==>y=-6.75
Answer B
B Myra should have multiplied 4.5 and 2.1 first.
Answer:
you can write about adding new computers or moniters
It's 180-40 divide 2 which equals = 70
I hope it helped you!!!