If you are smart solve this ​

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

The graph of g(x) is a translation of y = which equation represents g(x)?

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?