a varies directly as the square of b and inversely as the square of c. If a=95 when b=8 and c=4, find a if b=7 and c=9. Round your answer to two decimal places if necessary.

Answer 1

ac² = kb²

ac² / b² = k

a₁(c₁)² / (b₁)² = a₂(c₂)² / (b₂)²

95(4)² / (8)² = a₂(9)² / (7)²

Can you calculate a₂ and answer?