[Question]Ed and Jacob already had 2 shells in their shell collection. Then they went to the beach to collect even more. Ed found 7 limpet shells, 2 oyster shells, and 4 conch shells. Jacob found 2 more shells than Ed did. How many shells do the pair have altogether?
[Answer]Ed found 7 shells + 2 shells + 4 shells = 13 shells at the beach. Jacob found 13 shells + 2 shells = 15 shells at the beach. In total Ed and Jacob have 2 shells + 13 shells + 15 shells = 30 shells. The answer is 30.

[Question]New York is two-thirds as populated as all of New England. If New England has 2100000 people, calculate the combined population of both states.
[Answer]New York is two - thirds as populated as all of New England, meaning there are 2 / 3 * 2100000 = 1400000 people living in New York. The combined population of both states is 1400000 + 2100000 = 3500000. The answer is 3500000.

[Question]Liza bought 10 kilograms of butter to make cookies. She used one-half of it for chocolate chip cookies, one-fifth of it for peanut butter cookies, and one-third of the remaining butter for sugar cookies. How many kilograms of butter are left after making those three kinds of cookies?
[Answer]Liza used 10 / 2 = 5 kilograms of butter for the chocolate chip cookies. Then, she used 10 / 5 = 2 kilograms of butter for the peanut butter cookies. She used 5 + 2 = 7 kilograms of butter for the chocolate and peanut butter cookies. So, only 10 - 7 = 3 kilograms of butter was left. Then, Liza used 3 / 3 = 1 kilograms of butter for the sugar cookies. Therefore, only 3 - 1 = 2 kilograms of butter were left. The answer is 2.

[Question]An aqua park charges $12 admission and $6 for a tour. A group of 10 people goes to the aquarium and takes the tour; while a group of 5 people only goes to the aquarium. How much does the aqua park earn?
[Answer]
A group of 10 people is charged $12 + $6 = $18 each. So, 10 people pay $18 x 10 = $180. A group of 5 people pays $12 x 5 = $60 for the admission. Thus, the aqua park earns a total of $180 + $60 = $240. The answer is 240.