What is the solution to 3/4a> -16? a> -21 1/3 a< -21 1/3 a> 21 1/3 a< 21 1/3

3/4a>-16
Multiply by the reciprocal of 3/4 on each side to get only a on one side of inequality.
a> -16 x (4/3)
That can be simplified to:
a > -64/3
a > -21 1/3

Hope this helps :)