Answer:
A)

B) 240 pages
Step-by-step explanation:
From the table, he can read 20 pages in 6 minutes and 15 paged in 50 minutes.
The unit rate can be found using



Using the point (6,20) and the unit rate we can find the equation using




B) When x=72 minutes we substitute


Answer:
70%?
Step-by-step explanation:
because 7 precent of 10 is 70%
Percentage of error by Clare is estimated as 4.1667 %
Height measured by Clare = 4 feet
Height measured by Doctor = 4 feet, 2 inches
Percentage error = ?
Percentage error = Difference/ Actual height *100
Percentage error = (2/ (4*12))*100
Percentage error = 4.1667 %
The accurate height is measured by Doctor, as he have more accurate measurement system.