4(a + -5) in expanded form?

Answer this question only if you know the answer! 30 points and

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t