Answer:
2
Step-by-step explanation:
x(60) = 12(10) -->
x(60) = 120 -->
x = 2
Uhhh
Could you finish the question?
The answer for number 4 is 13 and number 6 is 121 and the last problem for number 7 is 112

just subsitute
f(4)=4²+3(4)-1
f(4)=16+12-1
f(4)=28-1
f(4)=27
it approaches 27 as x approaches 4