Find the sum of the arithmetic sequence.
-4, -1, 2, 5, 8, 11, 14

  35

Step-by-step explanation:

Since the sequence is so short, you can simply add the terms. It is convenient to do them pairwise, working inward from the first+last:

  (-4+14) +(-1+11) +(2+8) +5

  = 10 +10 +10 +5

  = 35

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Or, you can find the average term as the average of the first and last terms:

  average term = (-4+14)/2 = 5

Then the sum is the product of this and the number of terms:

  sum = (number of terms)×(average term) = 7 × 5 = 35

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.

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step-by-step explanation: