The product of the present ages of two brother is 160 and 4 years ago elder brother was twice as old as his younger brother. find their present ages

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?