Answer:
Step-by-step explanation:
So 1 is infinite solutions, because -32.4 is equal to -32.4 no matter what you do to it now, because adding, subtracting, whatever will not change teh fact that these are equal because the stuff has to be done on both sides. the solutions for this are INFINITE.
Answer: 9
Step-by-step explanation:
you have 45 $ and its 20 percent off
you can just times 0.20 by 45 and that gets 9
so your saving 9 $ and your spending 36
Answer:

Step-by-step explanation:
Remember that
.
So, 
Squareroot(x2-x1)^2+(y2-y1)^2
(4,5)(10,13)
=square root (13-5)^2+(10-4)^2
=square root 8^2+6^2
=square root 64+36
=square root 100
Rewrite it as
=square root 10^2
Pull terms out from under the radical, assuming positive real numbers.
=10
5500 degrees celsius times 270
5500 * 270
=1485000 degrees