Answer:
last option
Step-by-step explanation:because 9x9 is 81 subtract 1 and you get 80 5x5=25-1=24 so that wont work 4x4=16-1=15 so that also wont work and 7x7=49-1=48 so -9 and 9 is the right answere
It is 18777320
hope it helps
(3/5)(1/2)
Let B = fraction of the bulletin board
for Homeroom 101
B = (3/5)(1/2)
B = 3/10
