Which expression results when the change of base formula is applied to log4(x+2)?

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.

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle