Given: R, S, T are midpoints of , , and .

If the perimeter (distance around) of ABC is 20, then the perimeter of RST is

5
10
15

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

total of apples - take away four

6-4 = 2

answer is 2 apples