Q. Write the expression as a fraction with a positive exponent. Do not evaluate the expression. 891
Understand the expression: Understand the expression 8−9. The base is 8 and it is raised to the exponent −9. Base: 8 Exponent: −9
Apply negative exponent rule: Apply the negative exponent rule to rewrite the expression with a positive exponent.The negative exponent rule states that a−m=am1 for any nonzero base a and any integer m.Therefore, 8−9 can be rewritten as 891.