A sample of bacteria is growing at an hourly rate of 14% according to the continuous exponential growth function. The sample began with 7 bacteria. How many bacteria will be in the sample after 22 hours?

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

The function show two sisters' savings account and the rate at which they plan to deposit money

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle