Answer:
X = 80°
Step-by-step explanation:
it's an isosceles triangle. you can tell because of the two sides being 14 and the bottom being 18
this means the two bottom angles are the same so the other would also be 50°
Since a triangle has 180° between the three sides, you would subtract 180-100 and get the last angle
Parallel would be anything with the slope of 4x and perpendicular would be anything with the slope of 1/4
Answer:

Step-by-step explanation:
To find the unit rate we need to divide the # of miles over the number of practices to get the # of miles ran in a single practice:
=
Hope this helps!