Question 3 kala purchased a prepaid phone card for $30 . long distance calls cost 13 cents a minute using this card. kala used her card only once to make a long distance call. if the remaining credit on her card is $25.06 , how many minutes did her call last?

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true