HELP
Can someone please help with these? It's due in one hour and I'm confused​

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

Mindy bought 5/8 pound of almonds and a 3/4 pound of walnuts.which pair of fraction cannot be used to find how many pounds of nuts she bought in all.

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.