Answer:
a = 128
Step-by-step explanation:
(1) Write the equation
a = k/w²
(2) Find k by substituting the values of a and w
a = k/w²
18 = k/(8)²
18 = k/64
1,152 = k
(3) Substitute k to the original equation
a = 1,152/w²
(4) Substitute the value of w
a = 1,152/w²
a = 1,152/(3)²
a = 1,152/9
a = 128
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