Answer:

Step-by-step explanation:
40ab is 40 multiplied by a multiplied by b
The tip would be $2.80 because it is 20% of the $14 meal
90 is the outlier
for future reference, outliers are numbers much larger or much smaller than the other numbers in a set
for example
2,3,4,21,6
or 90,87,94,12,99
<span>What is 80.68 +79.56 equal?
</span>80.68+79.56 =160.24