What is the opposite of the opposite of the number located at point a?

A) −9
B) -1/9
C) 9
D) 1/9

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

If your annual gross income is $62,000 and you have one monthly car payment of $335 and a monthly student loan payment of $225, what is the maximum house payment you can afford. consider a standard 28% front-end ratio and a 36% back-end ratio. also, to complete your calculation, the annual property tax will be $3,600 and the annual homeowner's premium will be $360.

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15