The seventh-grade class earned 40% of the selling price of each flower.

in september, they sold 900 flowers.
in october, they sold 700 flowers.

select a choice from each drop-down menu to make a true statement.

the seventh-grade class earned more money in september/october by $30/75/$190

Evaluate cos2θ for cosθ = square root of 3/2

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =