9.Using indicated values for the variables x=10, y=2, Write the value of the expression x²-y.
A.-98 B.-89 C.89 D.98

10.What is m+5;n where m=1, and n =5?
A.25 B.26 C.52 D.62

11.Evaluate if xy-5 if x=6 and y=3.
A.4 B.58 C.13 D.-13

12.Combine the polynomials (4m - 16n+5) and (-8m + 5n -7)?
A.4m + 11n +2 C.4m - 11n -2
B.-4m - 11n -2 D.-4m + 11n +2

13.The given expression 4x - 5y will be diminished by 3x + 5y. What will be the resulting answer?
A.x- 10y C.x
B.7x D.7x - 10y

14.The sum of 3x² + 7x² + 8 is___?
A.10x² +8 B. 21x⁴ + 8 C.-4x² - 7
D.4x² - 7

15.Subtracting 5mn from -12mn is ____.
A.-17mn B. 17mn C.7mn D.-7mn​

Please im in hurry