Since

is negative, it doesn't have any real roots.
Answer:
n = 4
Step-by-step explanation:
Where's a or did you mean n?
Answer:
1. 0.6
2. 0.25
Step-by-step explanation:
because math
9514 1404 393
Answer:
x = 7
Step-by-step explanation:
10.5 maps to x with a scale factor of 2/3:
x = 10.5 × 2/3
x = 7
Well.. There's 3y-2=y+4 right?
Add 2 and you get 3y=y+6
Minus y- you get 2y=6
Divide it at 2 and you get y=3.
Sorry for the explanation but I'm from another country and this is the best I can