Which expressions are differences of squares?

select each correct answer.

t^2−1

n^2−225

p^2−40

k^2+81

Missy took the act and was told her standard score (z-score) is –1. frank took the sat and was told his standard score (z-score) is –2. which student has a better chance of getting admitted to college based on their test score?

In which source of water would a wave travel the fastest? o ice o cold o room temperature o hot mark this and return save and exit next

Which expression is equivalent to the expression shown?