The cost of four pens and seven mechanical pencils is $13.25. If each pen costs 75 cents each, what is the cost of each mechanical pencil?

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

Me with this one question, and i'll upvote the brainliest answer

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!