Answer:
2x + 3
Step-by-step explanation:
To find g(h(x)) substitute x = h(x) into g(x), that is
g(2x) = 2x + 3
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78 inches
perimeter of a kite formula: 2(a+b)
a= 18 inches
b= 21 inches
2(18+21)
2(39)
Other angle = 90° - 63.5° = 26.5°
