Ajeweler needs exactly 19,000 beads to make jewelry. he buys 48 boxes of beads. each box has 400 beads. he completes the calculations below and concludes that he has bought enough boxes of beads to make all of the jewelry. which explains what the jeweler does to support his conclusion? a. the jeweler does a calculation to find the number of beads he buys and compares the amount to 19,000. b. the jeweler does a calculation to find the number of beads he needs and compares the amount to 19,000 c. the jeweler estimates the total number of beads he buys and compares the amount to 19,000. d. the jeweler estimates the total number of beads he needs and compares the amount to 19,000.