45 handshakes would take place! i've attached how i figured this out (pardon the scribbles)
Answer:

Step-by-step explanation:



Answer:
20 for de first one and answer (B) for the second.
Step-by-step explanation:
20 for de first one and answer (B) for the second.
hope this helped;3
Answer:
100
Step-by-step explanation:
because... LOGIC
Answer:each box cost =$3
Step-by-step explanation:
Amount of money Ms Hart has to spent on costume boxes=$40
Amount gotten as change after purchase=$4
Amount actually used up buying costume boxes =$40-$4=36
Since she bought 12 boxes , each box cost =$36/ 12=$3