How do you write 343 with an exponent by using 7 as a base

He concluded that a heavier object dropped from the same height as a lighter object will land

Which statement is true? n is a point of tangency on circle p. pt is a secant of circle p. is a secant of circle p. vu is a tangent of circle p.

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a