Find the remainder when $1 + 2 + 2^2 + 2^3 + \dots + 2^{100}$ is divided by 7.

If i have 20$ and i gave 5$ away how much i got

What is the the greatest common factor ?

Lesson 9-3 for items 8-10, a square is drawn in the coordinate plane, with vertices as shown in the diagram. then the square is reflected across the x-axis. -2 4 8. the function that describes the reflection is (x, y) - a. (x, y-3). b. (x, y-6). c. (-x, y). d. (x,- y).