Answer:
Its light blue (cyan).
Step-by-step explanation:
Answer:
One
Step-by-step explanation:
Set each equations equal to each other


Find the discrimant.

This means there is one real solution. Since the discramnt equal 0.
A because, all the numbers multiplied by those factors equals their spot in the number
-3y = x...so we sub in -3y for x in the other equation
-x + 7y = 70
-(-3y) + 7y = 70
3y + 7y = 70
10y = 70
y = 70/10
y = 7
so we sub in 7 for y in either of the original equations to find x
-3y = x
-3(7) = x
-21 = x
so ur solution is (-21,7)