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Solve 2^x=32 and rewrite this equation in a logarithmic form

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.