Insert parentheses and or additions sings to make equation true 3 2 4 1 =13

Awork system has five stations that have process times of 5, 9, 4, 9, and 8. what is the throughput time of the system?

Which shows the image of rectangle abcd after the rotation (x, y) → (–y, x)?

Which compound inequality can be used to solve the inequality 3x+2 > 7? -7 < 3x+2> 7 -7> 3x+27 3x + 2 > -7 or 3x + 2 > 7 3x + 2 < -7 or 3x + 2 > 7