a code has five lines each line has two buttons. the code has to be a button from every line. how do calculate the number of different possibilities of combination types

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

Given the sequence 7, 14, 28, 56, which expression shown would give the tenth term? a. 7^10 b. 7·2^10 c. 7·2^9

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?