Q15: Let <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8311/.jpg" alt="Let .
Q16: Simplify the following expression. 7(9x)<br>A) 16x<br>B) 63x<br>C)
Q17: Use set-builder notation to write the set
Q18: Simplify: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8311/.jpg" alt="Simplify: A)
Q19: Write <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8311/.jpg" alt="Write as
Q21: Simplify the following expression. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8311/.jpg" alt="Simplify
Q22: Simplify the following expression. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8311/.jpg" alt="Simplify
Q23: Write <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8311/.jpg" alt="Write %
Q24: Subtract: -3 - (-21)<br>A) -24<br>B) 14<br>C) 20<br>D)
Q25: Add: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8311/.jpg" alt="Add: A)