Anyone wanna help me LOL ??

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Give all possible names for the line shown.calculation tip: lines can be written with either point first.

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?