Answer i need to know

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5

In . -15, -7, 1, a)7,13,19,21 b) 10,19,28,37 c)9,17,25,33 d)7,15,25,37