The answer is he used 18 ounces. Convert this first to pounds to ounces. We know that there are 16 ounces in one pound, so therefore he 4 x 16 = 64. So he has a total of 64 ounces. Two pounds of grape tomatoes would be equal to 32 ounces The roma tomatoes are when computed is 14 ounces. 32 + 14 = 46 (Grape + Roma)
