Interpreting Data from Graphs Practice Test

A meteorologist compared total rainfall across four months at one location. Figure 1 shows monthly rainfall totals. According to the graph, which month had rainfall closest to 60 mm?

Bar heights are approximately: April 45 mm, May 62 mm, June 80 mm, July 55 mm. Caption: Each bar represents the total rainfall measured for that month; values can be compared by bar height.

Biologists observed bacterial population growth in a nutrient broth over several hours. Figure 1 shows population size versus time. If the trend from 4 to 8 hours continues to 10 hours, what population size would be the best estimate at 10 hours?

Points are (0, 1), (2, 2), (4, 4), (6, 8), and (8, 16), connected by straight segments. Caption: The population approximately doubles every 2 hours over the interval shown; extrapolation beyond 8 hours assumes the same doubling pattern continues.