Answer:
The surface area of the square prism is 
Step-by-step explanation:
we know that
The surface area of the square prism is equal to

where
b is the length side of the square base
h is the height of the prism
In this problem we have


substitute

$20 dollars if you start with $18 and subtract what his parents gave him its $10 then double it so $20 is the answer
Answer:
1 1/2
Step-by-step explanation:
Hope this helps you pass your quiz :>
Second one...................
Answer:
12 bags
Step-by-step explanation:
9×8=72 beads all together
72/6=12 bags of beads