Which geographer is considered the founder of modern geography?
doreen massey
michael frank goodchild
abū rayhān al-bīrūnī
alexander von humboldt

It’s either c or d as the answer.

The correct answer is (a.) in the coming years, the reyes family will save money because solar power requires little maintenance, and the energy used is free.

Jupiter, saturn, uranus and neptune

The circumcenter is  equidistant  from each vertex of the triangle. the circumcenter is at the  intersection  of the  perpendicular bisectors  of the triangle's sides. the circumcenter of a right triangle falls on the side opposite the right  angle. the incenter  of a triangle is always inside it.