Marina's father's age is triple her age plus her sister's age, knowing Marina is 12 and her father 48, how old is Marina's sister? write the equation, calculate the age of the marina's sister and identify if they are twins

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?