Which of the following is an inference? a. mrs. thompson asked the students turn in their papers before beginning their presentations. b. melanie cleared her throat before the presentation because she was nervous. c. bobby gave his classroom presentation on the bill of rights. d. sarah said she made an outline to her memorize her presentation.

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one