A teacher spends $150 on school supplies for the classroom, folders are $0.25 each and notebooks are $2.50 each. This linear relationship can be represented by 0.25x 2.50y=150, where x represents the number of folders and y represents the number of notebooks.

What kind of interaction is depicted in the image? a. intraspecific, direct b. intraspecific, indirect c. interspecific, direct d. interspecific, indirect e. invasion

Essay questions may also be referred to as a. talk questions c. hard questions b. explain questions d. think questions

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.