.You deposit $200 in an account earning 3.5% simple interest. How long will it take for the balance of the account to be $221?

#12 find the value of x. #13 find the value of the variable.

The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.