I need help with this math question fast

Solve the system of equations. y= 2x y= x^2 - 15

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex

Iwill give brainliest. give accurate answer, . suppose tommy walks from his home at (0, 0) to the mall at (0, 5), and then walks to a movie theater at (6, 5). after leaving the theater tommy walks to the store at (6, 0) before returning home. if each grid square represents one block, how many blocks does he walk?