At a concession stand, three

hot dogs

and two

hamburgers

cost $7.75
;
two

hot dogs

and three

hamburgers

cost $8.50
.
find the cost of one hot dog

and the cost of one hamburger
.

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.

Fiona has to plot a histogram of the given data