The volume of a balloon is given by the equation V = t^2-3t+3. What is the volume of the
balloon after 3 seconds?
A) 3
B) 6
C) 9
D) 12

Can anyone help me solving this problem

What percentage of the earth's water is available for use by living things?

Which statements about the two fossil images are correct? 1. cave bears are ancestors of plateosaurus. 2. plateosaurus were present on earth before ostracoderms. 3. ostracoderms were the first to die. 4. plateosaurus died after the ostracoderms. 5. cave bears are the oldest fossils.

Abag contains even and odd numbered balls in the ratio of 3: 7, respectively. for each of the following, what is the probability of drawing an even-numbered ball? the total number of balls is 240 and 30 of the odd-numbered balls are renumbered by multiplying the numbers by 4.