Aaron bought a stereo system for $55 and spends $8.45 on parts. He sells the system for $60. What is his profit/loss?

2x minus y equals 6, x plus y equals negative 3

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?

Amayoral candidate would like to know her residents’ views on a public open space before the mayoral debates. she asks only the people in her office. her co-workers are an example of a census population convenience sample simple random sample