Answer:

Step-by-step explanation:
For Q1 and Q2


For Q3 and Q4

Students in class a are smarter than class b
Answer:
The answer is 28
Step-by-step explanation:
3 3/5 = 18/5
1 2/3 = 5/3
4 2/3 = 14/3
1260/45 = 28
Answer:
1.9 miles.
Step-by-step explanation:
John jogs 2 7/10 miles to the park. Marsha jogs 4/5 miles to the park.
Convert the fractions into decimals:
2 7/10 = 2.7
4/5 = 0.8
Subtract '0.8' from '2.7':

John should jog 1.9 miles farther than Marsha.
Hope this helps.
The sales tax is 2$ Hope this is the answer you're looking for.