traders fix the price of cosmetic items 30% above the cost price when he sold an item at 25% discount there was a loss of Rs 15 find the cost price and marked price of the item​

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.

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year