Suppose that 12% of a certain batch of calculators have a defective case, and that 16% have defective batteries. also, 4% have both a defective case and defective batteries. a calculator is selected from the batch at random. find the probability that the calculator has a good case and good batteries.

its electric no smoke

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yess

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idk whyy this is happening, i cant even read my notification bc i keep getting errors

~coco

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

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