Answer:
you plowed more of the field on day 2 than on day one because minus equals
Step-by-step explanation:
There is no difference, both equal 40.
The rule about negative exponents is that you put the base under "1" in a fraction and the negative exponent becomes positive. For example,

becomes

. So in your case,
Answer:
A = Ph + 2B
Step-by-step explanation:
where P is perimeter of the base, h is height of the prism (this is the rectangular lateral surface area) and B is the area of the base