1. Eric has 25 rocks he has collected as a science project for class. Nine rocks are sedimentary, 10 are igneous, and 6 are metamorphic. If Eric
chooses a rock at random, what is the probability that he will choose
an igneous rock?
A 1/2
B 2/5
C 3/8
D 1/15

This is really important 1.which of the following prefixes represents the largest value? (2 points)gigahectorkilomilli2.which of the following types of graphs is best for plotting the mean, median, and mode of data? (2 points)bar graphbox-and-whiskercircle graphstem-and-leaf

If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?

Which basic property determines a colored light's placement on the spectrum of visible light? a. speed b. frequency c. amplitude d. velocity