Yes my bestfriend as a joke ahhaha
Answer:
To plot an inequality, such as x>3, on a number line, first draw a circle over the number (e.g., 3). Then if the sign includes equal to (≥ or ≤), fill in the circle. If the sign does not include equal to (> or <), leave the circle unfilled in.
Step-by-step explanation:
S5 means that it is asking for the sum of the first five numbers in the variable
The first five are 400, 200, 100, 50, and 25. Add them together and you get 775