Solve the system using substitution: {y=5x-21 y=-7x+15

Question 101 points)which equation in slope-intercept form represents the line that passes through (5, 1) and(-4,7)

Julian wrote the following numeric pattern on the board3,10,17,24,31,38.what numbers of julian's pattern are compound numbers.

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?