A) 14
B
С
Three years ago, Nora was half as old as Mary is
now. If Mary is four years older than Nora, how old
is Mary now?
D
20
A
h
a
15
1912 of the seats at a football stadium were filled

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.