Answer:



Step-by-step explanation:
Required
Simplify

Express 20 as 4 * 5

Split

This gives:



Express as 100 * 3

This gives:



Express as 64 * 2

Split



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<em>Questions 4 and 5 are not clear</em>
<em>Follow the steps in 1 - 3 to solve 4 and 5</em>
Answer: 2nd one is the right one
Answer:
x = (180 - [71 + 9]) ÷ 2
Step-by-step explanation:
71 + 9 = 80
180 - 80 = 100°
100° ÷ 2 = 50°
One along the X-axis and one along the y- axis