Can i get some . which expressions are equivalent to( 5^3 x 5^2 )^4 a: 25^20 b: (25^5)^4 c: none of the above

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.

Pls the last one and it has to be like number 6