Question

Could I get help on some algebra? I need the explanation to know how to do it.

Answer 1

1/2

Explanation:

9/18

Answer 2

1/2

Explanation:

The scale factor is 1/2.

Look at the length of a side on the first triangle, and then compare it to the second one. The first base is 16, and second one is 8. The second is 1/2 of the first, so that is the scale factor.