The equation of a circle in general form is x2+y2+x−6y−2=0. What are the coordinates of the center of the circle and the radius of the circle?

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each,and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent.how much did jame pay at the end?

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?