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Which is the product of 58 and 1,000? a. 0.058 b. 5,800 c. 58,000 d. 580,000

With this one. will mark brainliest

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is