Ijust want to make sure i'm doing these right. find the value of each variable.

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15