2800 cbf = cbm
round to nearest 10th

  79.3 m³

Step-by-step explanation:

  2800 ft³ = 2800 ft³ × ((0.3048 m)/(1 ft))³ ≈ 79.3 m³

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The conversion factor for feet to meters is 0.3048 m = 1 ft. You need the cube of that to get to cubic meters from cubic feet.

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2