Answer:
But on what question??
Step-by-step explanation:
Only the first one works
y = 3(-1)-2 = -5
y = -(0) -6 = -6 not -2
This is a substitution problem...
Answer:
Approximate only
Step-by-step explanation:
the perfect square smaller than 1.4 is 1, because 
Take the difference between the two, 1.4 -1 = 0.4
Put the whole with 1. the part will be as follow:

Note: just approximate!! with calculator, it is 1.18321
150 * 8 = $1,200
150 / 2 = $75
$1,200 + $75 = 1275
Answer:
70%
Step-by-step explanation:
the camera is marked down 30 plus 40 which is 70%