Answer:
12.8
Step-by-step explanation:
(16÷100)×80 = 12.8
x= 4
2x-1=9
simplify 9-1 to 8
Divide both sides by 2
x=8/2
Simplify 8/2 to 4
x=4
9 inches a day
9 multiplied by 6 is 54
2, 8, 90, 160
that is the focal, vertex l, direction
40 feet
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