The answer is 1.5x10⁹ That is the scientific notation
I got the same answer as you. Try to ask your teacher about it since it’s a math problem online or something.
All you have to do is plug in.
x = 1 , y= 8
3x+5=y
3(1) + 5 = 8
3+5 = 8
8=8
They are both equal, yes. The coordinates work out in the equation. Both sides are equal so the coordinates work. The answer is yes.
6.5 is equal to 65/10 the reciprocal of that is 10/65=2/13
Parallel lines have equal slope so
Lets check
Now
Lines are parallel
