Garret is partway through a 20-minute bike ride. It takes 4 minutes for him to go a kilometer. Suppose k is the number of kilometers Garret has already biked.

The expression 4(5-k) describes the number of minutes Garret had left in his ride.

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What is x3+3x2−16x−48 divided by x−1?

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?

Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)