Jack broke apart 5 times 216 as (5 times 200) + (5 times 16) to multiply mentally. what strategy did he use?

What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.

Write the equations in logarithmic form 10^3=1,000

What is the area of the shaded sector?