Factorise

a) 2x + 8
b) 3x - 12
c) 6x + 4
d) 18x - 9

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

The value √10 and √15 are plotted on the number line

If the discriminant if a quadratic equation is 4 which statement describes the roots?