Shaun and trudy are selling raffle tickets. so far, shaun has sold x tickets. trudy has sold 3 more tickets than half the number of tickets that shaun sold. which expression represents the number of raffle tickets that shaun and trudy have sold altogether? a. x + 3 b. x + 3 c. x + 3 d. x + 3

7(x - 2) = 3(x + 4) solve the following equation. then enter your answer in the space provided using mixed number format.

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?

How can i differentiate this equation?