Iforgot how to slove a system of equations algebraically
y=x-1. y=-x+3

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

9/10 divide by -3/15 as a mixed number

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?