What is the number? : ) (well the rest of it ; -; )

See where the arrow is pointing at in each of the scales.

---In the first scale, the arrow is clearly on the 300, so you have 300 grams.

---Now look at the second scale. The arrow is clearly on the 40, so add 300g + 40g = 340 grams.

---The last scale's arrow is between the 2 and 3. There are 10 ticks between 2 and 3, so that means each tick represents 0.1.

The arrow is on the first tick, so it represents 0.1 grams. Add 2 and 0.1 = 2.1 grams.

Now add 340g + 2.1g = 342.1 grams.

The triple beam scale reads as 342.1 grams.

-2 is the right

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation: