Question

Lisa wrote this expression to describe the number of chairs that were set up in the meeting hall. 8 × r Which situation could be described by this expression? A. Lisa knows there were a total of 8 chairs. She does not know how many rows there were. B. Lisa knows there were 8 seats in each row. She does not know how many rows there were. C. Lisa knows there were 8 rows altogether. She does not know how many seats were plastic. D. Lisa knows there were 8 seats altogether. She does not know how many seats were reserved.

Answer 1

The "B) Lisa knows there were 8 seats in each row. She does not know how many rows there were" situation could be described the expression. R variable in Lisa's expression of "8 x R" means rows of the chair in the meeting hall based on a human's point of view when she first reached the meeting hall and this expression made the total chairs calculation become easier.