Simplify and calculate the following show all calculations

Question

A. (4+7)²-1÷3(56-14)
B.45% of 26.7-16*2597÷10388

Answer 1

A. (4+7)²-1÷3(56-14)
= (11)² - 1 ÷ 3(42)
= 121 - 1 ÷ 126
= 120 ÷ 126
= 10 ÷ 126
= 0.079365

B. 45% of 26.7 - 16 * 2597 ÷ 10388
= 0.45 * 26.7 - 16 * 2597 ÷ 10388
= 12.015 - 41552 ÷ 10388
= 12.015 - 4
= 8.015