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At a​ college, the cost of tuition increased by 9​%. Let z be the former cost of tuition. Use the expression z + 0.09z for the new cost of tuition. Write an equivalent expression by combining like terms
12 pointsss!!!

Answer :

Goyangigo
1.09z

Explanation:
z + 0.09z
= (1 + 0.09)z
= 1.09z

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