Solve the system of equations using substitution. 3x + 2y = 7 y = –3x + 11 a. (6, –3) b. (6, –7) c. (5, –4) d. (-4, 19/2)

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