Answer:
19°
Step-by-step explanation:
Set up the equation (triangles add up to 180 degrees)(Right angles are 90 degrees).
39 + 90 + 2x + 13 = 180
142 + 2x = 180
2x = 38
x = 19
Answer:
8, 20 and 6
Step-by-step explanation:
A coefficient is the numerical part of an algebraic term. Example: in the term 2x the coefficient is 2.
43 to 49 is 6
49 to 61 is 12
61 to 79 is 18
add 6 to each
79=4th row
79+18+6=79+24=103
103+24+6=103+30=133
133+30+6=133+36=169
7th row=169 seats
48
(5)(9) + 3
45 + 3
Hope this helps!!!!
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