Two negatives equals a positive:
Add the numerators and keep the denominator:
#3 is even I really hope this works
That expression can be expanded to be . . . <em>4x + 20</em> .
But the original one is simpler.
The population of the bacteria after 40 hours is 207 after 40 hours?
Answer:
just use the 10's btw
Step-by-step explanation: