Erica's room is 1.5 longer than wide. it is 18 feet long. how wide is it?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

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!

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?