If mike can type 120 words per minute, how long would it take him to type 420 words?

X2 + y 2 = 36 x + y = 6 solve the system of equations.

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale