Answer:
16
Step-by-step explanation:
log_2(x) = 4
Remember that in this case the log means what do you put 2 to the power of to get x? Here it is 4 so x = 2^4 = 16
Answer:
My teacher gave this to me a while back
N = a + 10^b
N = order of magnitude of a number
a = integer a
{b} = order of magnitude of the number
Answer:
she wrote

Step-by-step explanation:
For proper understanding let us format the question properly
Given the expression

Sandy's error can be observed in the second line of the solution where she made the mistake of writing
instead of 
hence the solution is supposed to be
Answer:
-15
Step-by-step explanation:
it is on the other side of 0 on the number line therefore the opposite of regular 15 is -15