Which is the conclusion of this statement?

if a and b are negative, then a + b is negative.

a. if a and b are negative, then a + b is negative.
b. if a + b is negative, then a and b is negative.
c. a and b are negative.
d. a + b is negative.

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What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio

Which rotation about its center will carry a regular hexagon onto itself