Answer:
Distance is 8.485
Midpoint is (3,4)
Step-by-step explanation:
Use the points (-1,7) and (5,1)
Insert them into the equation and solve for D

Insert points into second equation to find midpoint

I think it's 7 1/2 because you can turn 30 1/4 to 15/2, which simplifies to 7 1/2
3x+1 djdjdjdjdidjdjdjfjdjdjdj
A triangular pyramid has 3 rectangular sides and a top and bottom triangular base.