Given that x^4•x^???•x^3 =x^12 what is the missing exponent?

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )

21/58.

hope to be marked brainliest

if x = 1, then the answer is 3.5