11. Subtract.( 4x-2y) and ( 6x - 5y)
a. 10x - 7y
b. 2x +3y
c. -2x +34
12. What is the sum of 9m2-7 and -8m2 +3?
a. 17m2-4
b. 17m2+4
13. What is the value of the expression 6x + 11 when x= 3
a. 29
b. 7
c. 27
14. Evaluate: 2x2 + 3y - 9, when x=3 and y=1
a. 12
b. 24
15. What is the literal coefficient in the expression 5ab?
a. ху
b. 5
C. X
c. 30​