Is 1000 + 9000 =10,000...

The system of equations graphed below has how many solutions?

Adriana sold 50 shares of a company’s stock through a broker. the price per share on that day was $22.98. the broker charged her a 0.75% commission. what was adriana’s real return after deducting the broker’s commission? a. $8.62 b. $229.80 c. $1,140.38 d. $1,149.00

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