When solving an equation, Gabrielle's first step is shown below. Which property justifies Gabrielle's first step?
WILL GIVE BRAINLIEST

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

The system of equations graphed below has how many solutions?

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.