Simplify 6 over (3 + 3i).

Pick the expression that matches this description: a polynomial of the 5th degree with a leading coefficient of 7 and a constant term of 6 (choice a) 7x^5+2x^2+6 (choice b) 7x^6−6x^4+5 (choice c) 6x^7−x^5+5 (choice d) 6x^5+x^4+7

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees