2 half dollars just mean a dollar. In that case, that's 10 dimes. (10*10=100)
6
9
×__
54. or u can do 6×9 =54 so u can do it either way or do the 9 trick
and the fact is
Answer:
x =52
Step-by-step explanation:
bith angels together make 180° so 180-128=52