Simplify by combining like terms.5ab - 5 + 2ab + 6
A. 7ab - 1
B. 7a + 7b + 1
C. 8ab
D. 7ab + 1
Answer: D
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Find the perimeter of the triangle.a scalene triangle whose sides are 18 cm, 9 cm, and 19 cm
A. 37 cm B. 85.5 cm C. 46 cm D. 45 cm
Solve the problem.Insulation must be put into the space between two concentric cylinders. Write a completely factored polynomial whose values give the volume between the inner and outer cylinder if the inner cylinder has radius 15 meters the outer cylinder has radius x meters, and both cylinders are 19 meters high.
A. 34 ?(x - 19)2 B. 19?(x - 15)(x + 15) C. 19?(x - 15)2 D. 34 ?(x - 19)(x + 19)
Perform the indicated operation and write the answer in lowest terms.- 
- 
A. 
B. 
C. 
D. 
Solve the problem.Find the perimeter of the scalene triangle, a triangle with all three sides a different length. Recall that the perimeter of a figure is the distance around a figure.
A. 
m
B. 
m
C. 
m
D. 
m