Find the sum: 6/x-4+3/x+1 a. 6x − 9 (x + 1) (x − 4) b. 9x − 6 (x + 1) (x − 4) c. -6 5(x − 3) d. 5 -6(x − 3) (x + 1)

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related

This is so hard and it’s for a test

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?