Nicolasjhossaviz Nicolasjhossaviz Math Answered m. Use the GEMDAS/ PEMDAS rule in evaluating each expression.6. 21÷ (6-3)7. 7 + 4 x 2-28. 32 ÷ (8x2)-29. 15 - 45 ÷ 9 + 7 x 210. (21 - 15)² - 20