2.2 Study the sitting plan of a school hall below and answer the questions that follow. BALCONY POZ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 TIERED SEATING STALLS 1 2 3 4 5 6 10 11 12 15 16 17 18 19 20 21 22 2.2.1 Determine the total number of seats in this school hall.

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Step-by-step explanation:

i cant understand question please send pic picture

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

just sum

10 + 10 = 20