A 22 gram sample of substance that's used to sterilized surgical instruments has a k-value of 0.138

The long jump record, in feet, at a particular school can be modeled by f(x) = 19.6 + 2.5ln(x + 1) where x is the number of years since records began to be kept at the school. what is the record for the long jump 11 years after record started being kept? round your answer to the nearest tenth.

To finance her community college education, sarah takes out a loan for $2900. after a year sarah decides to pay off the interest, which is 4% of $2900. how much will she pay

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2