A student gives his friends small, short-term loans for periods of 1, 2 or 3 weeks after
which time they must be repald in full. He
always lends on a Friday afternoon. He starts
with €120
and loans
out the following
amounts each week:
week 1:€45
week 2:€25
week 3:€18
week 4:€20

what is the smallest amount of money he has
by the end of the 4th Friday?

Five dinosaurs go for a walk and come across some lovely chicken wings. their names are rexy, bronto, steggy, paly, and terry. there are exactly 5 dozen wings(equal enough for each dino to have a dozen right? ); however, terry is on a diet and he only eats 6 wings. if paly eats 2 more than terry, steggy eats 4 more than paly, and bronto and rexy eat the same amount because they are really hungry from not eating all day, how many chicken wings did each dino eat?

Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be 3. what sample mean would have a confidence level of 95% or a 2.5% margin of error?

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?