Please hurry. Simplify completely.
(2 + 3i)+(-4+1)

A. 2+4i

B. 6+4i

C.-2+2i

D. 6+2i

E. -2+4i

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75

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

Solve the system of equations. 2x-2y=-4 and x+y=8. show work