Answer:
-7
Step-by-step explanation:
You divide -3 on both sides to get the variable by itself, so -3 divided by 21 is -7
Answer #3 is correct
6 is the common ratio (r)
first term is -2/3 (a)
the general equation is f(x)=a(r)^x-1
so plug in the number
f(x)=-2/3(6)^x-1
The answer is 100 m^2
Because you just square the side lengths, 10 times 10 equals 100 as does 4 times 4 equals 16
Two million, nine thousand three hundred forty five