Can someone please help me here, will give Brainliest

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers

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