Please help ASAP if you can answer all I will mark brainliest, I have also added extra points! (No need to explain the answer with solution just type the answer for each question) ☺️

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Becca wants to mix fruit juice and soda to make a punch. she can buy fruit juice for $3 a gallon and soda for $4 a gallon. if she wants to make 28 gallons of punch at a cost of $3.25 a gallon, how many gallons of fruit juice and how many gallons of soda should she buy?