ILL MARK BRAINLIST FIRST ANSWER!! How many solutions does this system have?

5 x minus y = 3. 2
y = 10 x + 2.

A. one
B. two
C. an infinite number
D. no solution

Acylinder and its dimensions are shown. which equation can be used to find v, the volume of the cylinder in cubic centimeters?

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

Factor the polynomial. b^2 + 4b + 4