You can also use inequalities to solve problems that involve systems. Suppose the Community Center director who was planning the skating party has a budget of $895. Write and solve an inequality to determine the number of students who can be invited to each of the three locations. Then interpret each solution in terms of the problem situation.

Describe what moves you could use to create the transformation of the original image shown at right

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?

Prove that 16^4-2^13-4^5 is divisible by 11.