What is 27 rounded to the nearest ten?

Using long division 714/ 42

b) Anne-Marie calculates the clearance between a fridge door and its open position ( \( 27 \frac{1}{2} \) "), and the countertop across from the fridge \( 32^{\prime \prime} \) away. She wants to know the difference between the two?

The original price of a tablet was \( \$ 550 \). During a sale, Melvin was given a \( 30 \% \) discount for the tablet. How much did he pay for the tablet?

A seamstress is using an old cloth measuring tape marked with units to \( 1 / 8 \) of an inch, but the problem is that the old measuring tape has stretched and always gives a slightly larger measurement. The tape is used to measure the length of a dress pattern and then the same tape is used to measure the width of the same pattern. A length of \( 6 \frac{7}{8} \) inches is measured. a) What can you say about the degree of accuracy of the measurement? b) What can you say about the degree of precision of the measurement?

\( 2 + ( - \frac { 11 } { 3 } ) ; \quad - \frac { 1 } { 4 } - ( - \frac { 5 } { 6 } ) - 3 \)