Aused bookstore will trade two of its book for three of yours if val brings in 18 books to trade how many books can she get from the store

You are on a cycling trip around europe with friends. you check the weather forecast for the first week. these are the temperatures for the week. sun mon tues wed thurs fri sat 16°c 20°c 24°c 28°c 28°c 23°c 15°c what is the mean temperature forecast for the week?

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?