C= 25
s= 9

b= 4c - s2

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?

Solve 2x − 1 = 11 for x using the change of base formula log base b of y equals log y over log b.