Answer:
475
Step-by-step explanation:
i divided the two numbers and got 556 so your estimate should be 475
Prime Factors of 60: 2,3, and 5
Prime Factors of 140: 2,5 and 7
All mental math no work needed.
according to the picture we have:
x.y=4.7
(7)x(7)y=49xy=(49)(4.7)=230.3
You can use cross product to slove this equation.
so if 5.5 is in meter let change it to cm because the question want us to give the answer in cm.


now we multiply 5.5 times 100 which is equal to 550.
next we subtract 550 - 220= 330.
finally, the difference between a teacher and student is 330cm .meaning the teacher's desk is 330 cm longer or taller than the student.