An art club wants to sell greeting cards using members drawings. small blank cards cost $10 per box of 25. large blank cards cost $15 per box of 20. you make a profit of $52.20 per box of small cards and $85 per box of large cars. the club can buy no more than 350 total cards and spend no more than $210. how can the art club maximize its profit

Trigonometry help asap

Find the equation using the point (4,8)

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?