X(+1M) + (–2N) = 0 What does x have to be?
(+2M) + y(–1N) = 0
What does y have to be?
x(+2M) + y(–3N) = 0
What do x and y have to be? x =
and y =

This line graph compares the growth of plants that were kept in the sun for different amounts of time.a)  on day 7, the plants kept in the sun for 3 hours were how tall? b)  on day 7, the plants kept in the sun for 6 hours were how tall? c)    on day 10, the plants kept in the sun for 9 hours were how tall? d)  on day 11, the plant that was grown with 1 hour of sunlight was how tall? e)  based on the graph, the plant grows best in what amount of sunlight?

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

What energy is it when you flip on a switch on a lamp