Find the value of the expression 3m2 + 2p2 − 15 when m = 3 and p = 10.

Plug m=3 and p=10 into the expression:-

3(3)^2 + 2(10)^2 - 15

= 27 + 200 - 15

= 227 - 15

= 212

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm

I'm just guessing, but my answer would c. 0 to 300.