Ach sunday, mario weighs himself. here are his weight changes over a 4-week period. week 1 2 3 4 weight change –1.8 +0.9 –1.4 +0.4 how much has mario's weight changed over the entire 4 weeks?
a. 4.5 pounds
b. –1.9 pounds
c. –4.5 pounds
d. 1.9 pounds

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

The krasnapolski is a top-of-the-line hotel in amsterdam, the netherlands. among their many services, they rent bicycles to guests. the bicycle checkout is open 24 hours per day 7 days per week and has 50 bicycles on hand. on average, 10 guests request a bicycle each day, arriving completely randomly at all times of the day during the spring and summer seasons. guests keep bicycles for four days on average, with a standard deviation of two days. how long does a guest on average have to wait for a bike? a. approximately 24 hours b. approximately 0.033 hours c. approximately 4 days d. approximately 47 minutes