Answer: 
Step-by-step explanation:
By the Pythagorean theorem, the unknown side has length

Therefore,

The Area of a piece of paper
Answer:
No, it is not.
Step-by-step explanation:
comparing the two given values, 1.75 and 6, estimating 1.75 for 6 is not reasonable. This is due to the fact that converting 1.75 to the nearest whole number gives 2 which is far away from 6. Since,
6 - 2 = 4
So, estimating 1.75 for 6 would involve a large value of error. Which make it unreasonable. It would have been more reasonable to estimate 1.75 for 2.
Answer:
B - 10c
Step-by-step explanation:
Let B be the initial balance
And c be the cost of each trip
Her balance would be:
B - 10c