When you see a bicyclist on the road ahead with their left arm extended downward to their left, you should assume the bicyclist is Signaling to change lanes to the left or make a left turn.

Signaling that they are slowing down or stopping.

Just stretching their arm.
It is not a signal of anything.

at hatfield elementary school, there are 504 students in 7 classes. each class has the same number of students. what is a good estimate of the number of students in each class?

the apollo program, also known as project apollo, was the third united states human spaceflight program carried out by the national aeronautics and space administration (nasa), which succeeded in landing the first humans on the moon from 1969 to 1972.