At 5am santa leaves the north pole. An hour and a half into his trip, he realizes he forgot his bag. A second sled is sent to catch up, going 135 mph faster than he is. The second sled catches up to him at 9. How fast was the second sled going?

On the first of each month, shelly runs a 5k race. she keeps track of her times to track her progress. her time in minutes is recorded in the table: jan 40.55 july 35.38 feb 41.51 aug 37.48 mar 42.01 sept 40.87 apr 38.76 oct 48.32 may 36.32 nov 41.59 june 34.28 dec 42.71 determine the difference between the mean of the data, including the outlier and excluding the outlier. round to the hundredths place. 39.98 39.22 0.76 1.21

Mrs. gehrke said cheddar weighs 16.8 pounds. he actually weighs 15.2 pounds. what is the percent error?

Find the domain and range of the following function f(x) = 51x - 21+ 4