Which expressions are equivalent to 25x^4–64? select three options.
a. 25x^4+40x–40x–64
b. 25x^4+13x–13x–64
c. (5x^2+8)(5x^2–8)
d. (x^2+13)(x^2–13)
e. (5x^2–8)^2

There a total of 82 students in the robotics club and the science club. the science club has 6 fewer students than the robotic club. how many students are in science club?

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Plot the intercepts to graph the equation