Skeletons were found at a construction site in San Francisco in 1989.
The skeletons contained 88%
of the expected amount of carbon-14 found in a living person. In 1989,
how old were the skeletons?

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.

7

step-by-step explanation:

central angle of a triangle has the same measure as its intercepted arc.

step-by-step explanation:

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative