Answer:hello
Step-by-step explanation:
80% of 20 is 80/100 x 20 = 16
So, kelly has used 16 stamps, and has 4 left
Answer:
5
Step-by-step explanation:
When squaring the number 5 (i.e 
) the answer is 25. 
is the same thing as 5 times 5. Basically with the square root, you are going backwards, so you are therefore finding the base of it all.
Ok the formula for this is 2(lw +hw+hL)
2(30+35+42)=2(107)=214 square feet
