Aphone company charges a base fee of $12 per month plus and additional charge per minute. the monthly phone cost c can be represented by this equation: c = 12 + a x m where a is the additional charge per minute, and m is the number of minutes used.

Cot(90° − x) = 1 the value of x that satisfies this equation is °. a. 60 b. 135 c. 225 d. 315

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.2 days and a standard deviation of 1.7 days. what is the probability of spending more than 2 days in recovery? (round your answer to four decimal places.)

Jenny made a scale drawing of a city. the scale she used was 5 inches = 1 yard. what is the scale factor of the drawing?