Answer:
markup 3 dollars a shirt. Total markup 900$
Step-by-step explanation:
It shouldn't be too hard, I've been taking my practice test all day today and yesterday night and I believe i'm going to do good today on my test, just study hard and take the practice test
The distance in kilometers in scientific notation 
<h3>Scale factors</h3>
Scale factors are values or constants multiplied with a variable
If Alvin and Simon raced a distance of
kilometers and they need to race 7 times that distance in a kilometer, the distance traveled will be:
- Distance travelled =

- Distance travelled =

Hence the distance in kilometers in scientific notation 
Learn more on distance here: brainly.com/question/23848540
The greatest value shown on the dot and whisker plot is c. 50