Fast calculate the percent increase or decrease from 12 ft to 23 ft

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

The length of the largest fish is 967.74 times greater than the length of the smallest fish. select a variable expression that shows the length of the largest fish, if 8 is the length of the smallest fish. a. s + 967.74 b. \[ \frac{967.74}{s} \] c. 967.74 - s d. 967. 74s

Plz ( true - false) all triangles have interior angles whose measure sum to 90.