Anna is 26 ft. high on a rock-climbing wall. she descends to the 15-foot mark, rests, and then climbs down until she reaches her friend, who is 8 feet from the ground. how many feet has anna descended?

She has descended a total of 18 feet from the top to her friend.

Step-by-step explanation:

Anna is 26 ft. high on a rock-climbing wall.

She descends to the 15-foot mark,means she come to a height of feet and rests.

Then climbs down until she reaches her friend, who is 8 feet from the ground.

So, she climbs down feet more.

Hence, in total Anna has descended feet

The answer : She has descended a total of 18 feet from the top to her friend.

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.