PLEASE HELP ME WITH THIS

The answer to your question is SA = 1244.64 cm² ≈ 1245 cm²

Step-by-step explanation:

Formula

SA = 2B + PH

Process

1.- Calculate B

B = Perimeter x 6.93/ 2

B = (8 x 6) x 6.93 / 2

B = 166.32 cm²

2.- Calculate 2B

2B = 2(166.32)

     = 332.64 cm²

3.- Calculate PH

P = perimeter

P = 8 x 6

   = 48 cm

PH = 48 x 19

PH = 912 cm²

4.- Calculate SA

SA = 332.64 + 912

SA = 1244.64 cm²

200 blue marbles

Step-by-step explanation:

two-thirds of 600 is 400... so the rest is easy 600-400=200

brainliest pls