The students that are correct are Jake , and Liu because 51, and 21 are composite.
Hope this helps!
The answer to your question is Y
A tangent is a straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point.
the answer is LM
because it is a straight line, it touches the surface of the circle, but it does NOT cross the circle at one point.
namely, how many times does 4 x 10⁻³ go into 8 x 10⁶.
I think it’s im not sure 400x