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OK

Do I post my answers? I got 1:4 I just need clarification

17 is 1,512 cm3

18 is 19,600 m2

Thank you!! :)

# 21
volume = 4/3*pi* r^3= 4/3*pi *(16)^3=

17157.284679

# 22
18--> 3
24---->4
so 18/3=6
24/4=6

so 1:6 ?

yes

# 23 do as 22

21 asking about the voulem and the radius is given
the equation is =4/3 * pi * r^3

* Volume

thank you! and for 23 I got 1:2.4 Is that right?

you are right

# 24 ?

http://prntscr.com/7a9pib

WHEN U GUYS R DONE DO U MIND HELPING ME CHECK MY ANSWERS

it's 1 am for me and I'm trying to do my work, I'll try if simple.

IT IS grade seven work

# 24 85,184 /1331

Oh okay B, that makes sense

yes

I'm calculating 21 still and end up with B. Is that right? I ended up rounding.

i don't know what is B

nvm I got it, it was c. I see what I did wrong.

are these correct? http://prntscr.com/7a9sr5