Carmen purchased a prepaid phone card for $30. Long distance calls cost 7 cents a minute using this card. Carmen used her card only once to make a long distance call. If the remaining credit on her card is $28.67, how many minutes did her call last?

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !