exam Maths Puzzle Numerical Ability

Solve for x: logbase9 x=-1/2

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exam Other Question

BUYING 5 DVDS FOR $66.34 INCLUDING 7% SALES TAX, HOW MUCH IS EACH DVD? How can i solve this? could you give me step by step advice?

Solve for x. Collect xs on the LEFT side. The solution should be presented with x first, the correct inequality symbol, then the number.

- 7x + 2 + x – 10 > -3(x – 1)