There are 10 boys and 13 girls in ms. kelso’s homeroom. she is going to select one boy and one girl to act as homeroom representatives for student council. how many different pairs of students could ms. kelso choose?
a.) 10
b.) 23
c.) 130
d.) 230

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth