Ahot air balloon descends 15 feet each minute after having reached an altitude of 362 feet above the ground. what is the altitude of the hot air ballon after 12 minutes

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

Is it true or false i’m trying to pass this test so i can leave school

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?