Please help me this is the last question of my test and I need to pass!

What is the value with a place of tenths in 907.456 1) 0 2) 6 3) 4 4) 5

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

Identify the polynomial. a2b - cd3 a.monomial b.binomial c.trinomial d.four-term polynomial e.five-term polynomial