Use complete sentences to describe how mathematical problem solving can help you in life. can you give me some ideas i want to be a cosmetologist so if possible relate to that. thanks!

21 a stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. how long are the two pieces?

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?