A piece of brass contains 1.66 grams of copper and 0.34 gram of zinc. What is the mass of the piece of brass in grams?

Why do interests rates on loans to be lower in a weak economy than in a strong one

Askyscraper is 396 meters tall. at a certain time of day, it casts a shadow that is 332 meters long.at what angle is the sun above the horizon at that time?

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?