4 people email 3 more people each so 12 people are emailed, then these 12 people email 3 more people each, so 36 people are emailed.
You would use the distributive property with the negative. So the second x becomes negative, but since the 7 is already negative it becomes positive. Think of it as if you put the two dashes together you can make a plus sign.
5 x 10^-6
=0.000005 <span> in standard notation</span>
hope that helps
Answer: 81 miles
Step-by-step explanation:
if 2 inches = 54miles then 1 inch is 27 miles because 54/2=27
so 3 inches means 3(27)=81 miles from yuma to sentinel
