Acomic book costs $3.99, including tax. it is marked up 45%.

what is the final price of the comic book after it is marked up?

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

How do i do this activity, is appreciated

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?