Order of operations with exponents

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Calculate:
1. $5{\left( { - 2} \right)^4}$
2. $- 6\left( {{3^7}} \right)$
3. $8{\left( 4 \right)^3}$
4. $9\left( { - {4^2}} \right)$
Calculate:
1. $30 - {5^2} + \left( {{6^3} - {2^3}} \right)$
2. $9 - 4\left( {{2^3}} \right)$
3. ${\left( { - 5 - 4} \right)^2} + {\left( { - 4} \right)^2}$
4. ${\left( { - 4} \right)^6} \div {2^3}$
A small yellow square is put on top of a large green square. The side length of the yellow square is 7 cm, whereas the side length of the green square is 11 cm.
1. Write the visible green area as powers.
2. Calculate the visible green area.