Ayannah has a goal of running a total of 50 miles this month. Each day that she ran, she ran 5 miles. Which expression could Ayannah use to determine how many miles she has left to run after running for d days?

Sam makes his sales calls according to a pattern. he travels either north or south depending on the calendar. some of his past trips were as follows: on february 17, april 24, june 10, september 19, and november 3 he drove north. on february 28, may 25, august 22, november 20, and december 18, he drove south. describe sams' pattern. in which direction will sam drive on oct4 and oct 24?

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?