It's B because 5 x 4 = 20 and 9 x 5 = 45
When you add them together you get 65
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1 pound = 16 grams
1.75 pounds = 1.75 *16 grams
1.75 pounds = 38 grams
3 x 10 = 5 x 621 + 11 = 9 + 2336 div 9 = 12 div 330 - 5 = 40 - 15
2 x 8 = 4 x 423 + 20= 2 + 4190 - 80 = 20 - 10