17. What is the sum of the following expressions, (9x). (6x) and (15x)?
A 30x
B. 31x
C.32%
D 33x
18. What is the sum of (8x +15) when added to (-9x-10)?
A. -17%-25 B.-17x-5
C. -X +5
D. -X-5
19. Find the difference of (10y +25) and (2y + 45).
A. 8y - 20
B. 8y + 20
C.-8y-20
D.-8y + 20
20. What is the equivalent of 2?
A 2x2x2x2x2
B. 2 + 2 + 2 + 2 + 2
C. 2 + 2 + 2 + 2+2
D. 2-2-2-2-2
21. Which of the following is equivalent to 1024?
A. 27
B. 28
C. 29
D. 210
22. Find the product of (-7a) and (2a).
A. 14a12
B. 5 a12
D. 210
C-5 a12
D. -14a 2
23. Multiply (4a) and (-2a2 - 4a - 2). (SHOW YOUR SOLUTION)
SOLUTION:​