A fruit stand has to decide what to charge for their produce. They need $10 for 4 apples and 4 oranges. They also need $15 for 6 apples and 6 oranges.
Can we find a unique price for an apple and an orange, and if so, what is it?

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right

you can use a^2+ b^2=c^2

time is equal to distance over rate so

t = d/r

need a little bit more information for the second question.