All sequences for this problem are geometric. Give all answers to the nearest thousandth.

Ifa_1 = -59 and r = 2 , then a_{13} = .

Ifb_{18} = 7 and b_{49} = 56 , then b_1 = .

Ifc_{17} = -20 and c_{35} = -45 , then S_{16} = .

If

If

If

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