Answer:
a) no real solutions
Step-by-step explanation:
the discriminant (b² - 4ac) is negative which indicates no real solutions
27 is the answer, I can explain how I got that if you need.
Answer:

Step-by-step explanation:
You can use these Cramer's formulas to solve for x and y:

where

So,

Answer:
9
Step-by-step explanation:
12-5=7 so...
2+7 = 9
y = 9