Answer:
a < 14
Step-by-step explanation:
a - 4 < 10
isolate the variable
a<14
Add 4 to both sides of inequality.
a-4+4=10+4 which is a<14.
5/7 so D is your final answer.
x is less than -3
3x^2+9x<0
x^2+3x<0
x(x+3)<0
x+3<0
x<-3