A pair of designer blue jeans is on sale for $52. This is 75% of the original price. What was the original price of the jeans? I asked this before bu I’m not sure if it went through

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.

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?