Answer:
a=11
Step-by-step explanation:
used MathPapa
Y=12, and X=18, it’s a 30 60 90 triangle
Yeah, where I live, to find the slope (or as we call it, the gradient), you just have to do the two y values subtracted from each other, over the two x values subtracted from each other. The important thing is to remember that if you subtract the first y value from the second (so, 12 - 8), you have to do the same thing for the x (6 - 2)

=

= 1.
The slope is 1.
ive done this the answer is B
6/10 rounded to the nearest tenth inches a hour of rain fell