Acertain drug is made from only two ingredients. compound a and compound b. there are 5 millimeters of compound a used for every 6 millimeters of compound b. if a chemist wants to make 682 millimeters of the drug how many millimeters of compound b are needed?

Ahomeowner plans to hang wallpaper on one wall of a bedroom that is 10 feet long if a stripe of wallpaper is 20 inches wide and stripes or hung vertically how many stripes on wall paper with the homeowner required

Answer this question, only if you know the answer. 30 points and brainliest!

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?