Got a good one here. For math experts only ! Please help me .
When you answer please make it easy for me to understand and where to put the blocks :)

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

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?

To decrease an amount by 16% what single multiplier would you use