Use substitution to solve the system of equations and choose the solution from the list below. Look at the image

Carson has only $20 bills and $10 bill in her wallet. the total value of the bills is $50. she has 1 more $20 bill than $10 bills. how many each kind of bill does carson have? a. one $20 and two $10 bills b. two $20 bills and one $10 bill c. one $20 bills and three $10 bills d. two $20 bills and two $10 bills

Which statement about perfect cubes is true

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle