Sin^2A+cos^2A=? .find the value. ​

Shannon drove for 540 minutes. if she traveled 65 miles per hour, how many total miles did she travel?

Einstein office equipment has a rental plan for office machines. a fax machine that lists for $722.98 can be rented for 22% of the price annually. the state imposes a usage charge of 3.2%. if stephen hawking travel decides to rent the fax machine, what will its total monthly rental charge be?

Y=x+2 4x+3y= -36 system of equation