I think the answer would be 85.1
Answer: 2.25x

Scientific notation is used in science because the number can be vary from so much that using decimal is making it hard. The number expressed in

form. Both number in the question is already in scientific notation. Then to multiply the number and keep it at scienfitic notation the calculation should be:
2.5 x

x 9 x

= 22.5 x

= 2.25x
the missing number is 1/8 i hope this helps chu
multiply all terms in the second equation by 2 to get the coefficient on the y variable to be -6.

Answer:
28.740,
Step-by-step explanation: