Answer:
There's one 0.
Step-by-step explanation:
Because I multiplied it and there's only one 0.
1
6f+21=-15
6f+21-21=-15-21
6f=-36
6f/6=-36/6
f=-6
1/4 inch
Multiply 1x1 to find the area
Divide by 4 to get 1/4.
OR
Multiply 1/2 x 1/2 to get the same answer
