What is the answer for 7 to the negitive second power.

the negative just tell you you put a one over the number. Once that's done, the power will be positive, and you can square like normal

Are you asking about    ?

If so:

A negative in the exponent tells us that we must take the reciprocal of the number, in this case, 7, and then use the exponent like normal:

=

=

,

So our answer is 1/49.

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.