Answer:
Use the value for the variable to solve for the other unknowns. Substitute the value for the variable into the expression for the number of seats on the middle level. Substitute the value for the variable into the expression for the number of seats on the lower level.
Answer: The quadrilateral used here is a trapezium.
Answer:
50
Step-by-step explanation:
solved
Answer:
35
Step-by-step explanation: