Ajet plane costs an airline $69,500,000. what is the place value of the digit 5 in this number?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

What is the gcf of 20c^3-5c^4+30c^6

On friday, there were x students at the baseball game. on monday, there were half as many students at the game as there were on friday. on wednesday, there were 32 fewer students at the game as there were on friday. which expression could represent the total number of tickets sold for all 3 games?