8/25 x 7/8 Please help guys I am almost done with this paper and I am tired

The diameter of a table is 5 feet. what is the circumference

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.