Can someone please give me the (Answers) to this? ... please ...

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?