Jacob is 4 years older than alexandra. in 6 years the sum of their ages will be 80. how old is jacob now?

Michelle had a birthday party. she bought a bag of candy with 96 starbursts, 72 hershey's, and 68 reese's. she wants to use all the candy she bought to make goody bags with the same amount of starbursts, hershey's and reese's in each bag. what is the largest number of bags she can make?

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

We just started the introduction into circles and i have no idea how to do this.