Fill suitable number in the blank. The cost of 4 pencils is 8 dollar. How much does Mrs Loan have to pay for 1 pencil? Answer:Mrs Loan has to pay for 1 pencil.

The question provides the information that 4 pencils cost 8 dollars. To find the cost of one pencil, we need to divide the total cost by the number of pencils. Therefore, the cost of one pencil is 8 dollars divided by 4, which equals 2 dollars. Thus, Mrs. Loan has to pay 2 dollars for one pencil.