A stadium holds a total of 7,500 people. A random survey of 150 people finds that 17 of them are under 21 years old.

Enter the total number of people predicted to be in the stadium under 21.

Astudent simplified a rational expression as shown.

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?

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.