Answer:
x = 8, y = 
Step-by-step explanation:

Both 8 and x sides are congruent so they're equal.
Add 64 + 64.
Square root 128

Final answers: x = 8, y = 
1,260 miles all you have to do is 420x3 because Annie drove 3 times faster.
Answer:
-4
-10x+6
Step-by-step explanation:
I am going to assume the (Something)x2 means (Something)
. Then, the expression is 2
-6
+4x-6x+9-3=-4
-10x+6