Will give brainliest!

what is the unknown scale size?

enter your answer as a decimal in the box. round only your final answer to the nearest thousandth.

Using the two smallest sizes divide the larger of the two by the smaller one:

1 / 0.618 = 1.618

The scale factor is 1.618

Now multiply 1 by that:

1 x 1.618 = 1.618

The missing font size is 1.618.

Can check by multiplying the missing size by the scale factor:

1.618 x 1.618 = 2.618

answer: 2530

hope this

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5