6. Which expression represents the following algebraic statement? twice the difference of a number and 18
O A. 2(n – 18)
B. 2 x n - 18
O C. n(2 x 18)
0 D. 2 x 18-n

1/2*qr*rs

step-by-step explanation:

sites:

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart