month weight (lbs)
january 13.5
february 12.5
march 10.5
april 11.2
may 11.2
june 10.8
july 9.5
august 13.4
september 11.5
october 11.8
heather recorded the weight of her cat sally for the past ten months. she is going to the vet this month. she is predicting that the cat's weight will be close to the mean of her data. about how much is she predicting that sally will weigh?
a) 8 lbs
b) 10.9 lbs
c) 11.3 lbs
d) 11.6 lbs

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)