2x +1=-7 + 2x
how many solutions does this equation have ?

What are the sotions to the quadratic equation 9x^2=4

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?