What is the explicit rule for the geometric sequence? 400, 200, 100, 50,

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Tanyss's house has 25 windows. her brother has washed 22 of the windows. what percent of the windows has her brother washed?