The derivative of (x+1)^2, for this you use the chain rule, to get 2x+2.
If this is a proportion, then the answer is 16.
3:12, 4:16
3*16=12*4
Answer: x=r^2
+
10
r
+
25
It is B Because you are finding the intrest rate which means find the rate first hen subtract the actual rate to the interest rate<span />