The height of a falling pinecone can be represented by y = -16° +64 where t is the time in seconds and y is the height of the pinecone in feet. Write and solve an equation to find the number of seconds it
will take for the pinecone to reach the ground.
A. 4 seconds
B. 6 seconds
C. 2 seconds
D. 1.5 seconds

Two bags, A and B, each contain only green marbles and red marbles.

There are 6 green marbles and 4 red marbles in bag A.

There are 8 green marbles and 2 red marbles in bag B.

One marble is going to be taken at random from bag A and placed in bag B.

A marble is then going to be taken at random from bag B.

Work out the probability that this marble will be a green marble.​

Step-by-step explanation:

answer: for each 3 girls there is 2 boys . 3: 2

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