Devya sold shirts to raise money for a school trip. the amount of money she received from her sales is proportional to the number of shirts she sold, as shown in the graph below. which statement correctly interprets the meaning of the line in the graph?

Which of these choices show a pair of equivalent expressions?

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.