Savannah is choosing between two cell phone plans plan a charges 60$ a mont plus a one time activist on fee of 75$ plan b charges 63$ a month plus a one time activision fee of 15$ evaluate the expressions 60m + 75 and 63m + 15 when m = 18 to find the total cost for each cell phone plan for 18 months what is the difference in cost between the two cell phone plan n

This is geometry. could anyone ? i can't fail this class. my grade is quite low already.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3