Answer: A and B
Explanation: A sum is an answer to an addition problem and a difference is the answer to a subtraction problem. N is the sum to the addition problem and -n is the answer to a subtraction problem.
Answer:
1/2 = 0.5
3/4 = 0.75
Step-by-step explanation:
I think you multiply, 575*0.20=115?
Length of 1 = 300 = 3 *10^2 nanometers
= 3*10^2/1*10^9 m
= 3*10^(2-9)
= 3*10^-7m
Josh is incorrect, he did not examine the expression correctly, therefore his answer was wrong.
