12 is a
13 is b
14 is d
15 is 1 217/1250
The answer is 4.7 x 10^-4
If you move the decimal to the right, the exponent will be negative. If you move it to the left, the exponent will be positive.
I believe the answer is C
Q.What is the equivalent expression of 3p+12m+8
A.12m+3p+8
Hope this helps:)
