Answer:
52%
Step-by-step explanation:
First, find the difference between this year's sales and the previous'. 1500-990=510.
Now we can divide 990 by 510 to find the percent increase. 510/990=0.515151515152, or 52%.
Answer:
yes
Step-by-step explanation:
the variable cannot have a negative symbol, unless it has no number.
The correct answers are the 3rd and 4th ones.
You can put them vertically
then subtract them
but if you do it, it will be 0=-10 that doesn't make sense.
So the answer is that there is no answer!