Question 7 (3 points) Which system is responsible for defending the body against harmful substances? circulatory system muscular system endocrine system immune system

Ared balloon starts at 7.3 meters off the ground and rises at 2.6 meters per second. a blue balloon starts at 12.4 meters off the ground and rises at 1.5 meters per second. when will the balloons be at the same height?

How many lines can be drawn through points j and k? 0 1 2 3

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3