If a sum borrowed under compound intrest doubles itsef in 10 years, when will it become four fold?

The late fee for library books is $2.00 plus 15¢ each day for a book that is late. if maria’s fee for a late book was $3.20, write and solve a linear equation to find how many days late the book was.

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Write two subtraction equations that are equivalent to 5 + 12 = 17.