Answer:
900 minutes
Explanation:
Given the function :
m(x) = 30x
m(x) ; function which represents number of total minutes ;
x = extra lesson session
If Eric goes for extra lesson session 2 times per week for. 10 weeks
Number of extra lesson sessions, x : (2 * 10) = 20 extra lesson sessions
Total Number of minutes :
m(x) = 30x
m(30) = 30(30)
= 900 minutes