In figure 1, starting from the left, what magnetic poles are shown on the two bar magnets?

north, south, north, south
south, south, north, north
south, north, south, north
north, north, south, south

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles

did you fail the test? xd