A jar contains some marbles that are either white or red. The ratio of the number of white marbles to the number of red marbles is 2:3 What might be the total amount of white and red marbles in the jar?

The axis of symmetry for the graph of the function f(x)=1/4^2+bx +10 is x=6. what is the value of b?

Abcd is a parallelogram. the diagram is not drawn to scale. if m

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?