What is 21,321 rounded to the nearest 100

Mr. walker gave his class the function f(x) = (x + 3)(x + 5). four students made a claim about the function. each student’s claim is below. jeremiah: the y-intercept is at (15, 0). lindsay: the x-intercepts are at (–3, 0) and (5, 0). stephen: the vertex is at (–4, –1). alexis: the midpoint between the x-intercepts is at (4, 0). which student’s claim about the function is correct?

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

Write the pair of fractions as a pair of fractions with a common denominator