Hannah kept track of the new baby elephant at the zoo. At one month, the baby weighed 2 kg. At 2 months, he weighed 5 kg. At 3 months, he weighed 14 kg, and at 4 months, he weighed 41 kg. Hannah noticed a pattern—what was her prediction for his weight at 7 months?
A jar contains 48 marbles, identical except for color. There are twice as many yellow as red marbles, and twice as many blue as white marbles. There are 6 more white marbles than red marbles. What is the probability of drawing at random a yellow marble from the jar?
Light travels at 186,000 miles per second.
a) The sun is 93,000,000 miles from earth. How long does it take for light to get from the sun to the earth?
b) Scientists use the term “light year” to describe distances in the universe. The nearest star to earth is 4 ½ light years away. In miles, about how far away is that?