what difference between the two graphs leads to the fact the different impressions are created?explain​

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.

There are a total of 75 students in the robotics club and the science club. the science club has 11 more students than the robotics club. how many students are in the science club?

Points j and k plotted on the coordinate grid are two vertices of rectangle jklm rectangle jklm has an area of 7 square units point j is located at 2,1 and point k is located at -5,1 each vertex of the rectangle is located at a point that has integer coordinates. what is the perimeter of rectangle jklm? (need answer asap)