the community theater sold a total of 75 adult and student tickets. Each adult ticket cost 9.05 and each student ticket cost 6.25 . If the they’re had a total of 636.75 in ticket sales how many adult tickets were sold

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

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?