Answer:
It is because it comes from the word 'ratio'. A rational number is usually known as the ratio of two integers, that's how it got its name. :)
You answer is a^10
when multiplying by exponents, you really add them
Cashier job pays $9 per hour
Delivering newspaper pays $8 per hour
The answer is the last one. D
19+(-19)=0
Step-by-step explanation:
So first lets simplify this. We can use the method keep,change, change to do this. Keep the value of positive 19. Then change the + sign to - and the - sign to plus which gets us
19-(+19).
We can remove the +since we know its positive leaving 19-19 which is 0