What type of function is this: a1 = 2

an = an-1+4

Arithmetic and Explicit
Arithmetic and Recursive
Geometric and Explicit
Geometric and Recursive

Gravity, also called gravitation, in mechanics, the universal force of attraction acting between all matter. ... On Earth all bodies have a weight, or downward force of gravity, proportional to their mass, which Earth's mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects.

step-by-step explanation:

i think u have 12 apples sorry again i don't really know if it correct i'm just tryna hrlp people out.