Answer: 
Step-by-step explanation:
To solve this problem you must:
1. Write the lenghts given in the problem in the same units.
2. Let's convert all the units to meters. Then:
537 km to m:

790 dm to m:

41 cm to m:

8 mm to m:

Now you rewrite them in increasing order:

Answer:
$28
Step-by-step explanation:
Each round trip will be double the price of a one-way trip, so will be ...
2 × $3.50 = $7.00
Diego and his 3 friends will require a total of 4 round-trip tickets for a cost of ...
4 × $7.00 = $28.00
Answer:
Bianca is paying $22.08
Step-by-step explanation:
If the Shirt Cost 23$ in total, and the seller took 4% off the original price, Which means
4% of 23$ = 0.92 cents, now clearly it says "IT TOOK OFF"
So, now you subtract 0.92 from the original price, to find the new price.
Here the original price is 23$,
23$ - 0.92 = 22.08$, so that means...
Bianca ended up paying $22.08
9 of them are puppies because 15 percent of 60=9