What is the value of A when we rewrite
(2/3)^x+4 - (2/3)^x as A • (2/3)^x

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

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).

Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb