A mobile provider believes that its new promotion will convince 20% of their competitors' customers to switch to their own service. If the company's forecasts are correct, what is the approximate probability that one out of four randomly selected competitors' customers will switch after exposure to the promotion

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?

Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi