Solve the equation and check your solution.21.8x = 218
A. 196.2
B. 208
C. 10
D. 0.1
Answer: C
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Use a proportion to solve the problem. Round to the nearest tenth as needed.A triangle drawn on a map has sides of lengths 8 cm, 10 cm, and 15 cm. The shortest of the corresponding real-life distances is 136 km. Find the longest of the real-life distances.
A. 170.0 km B. 255.0 km C. 160.0 km D. 265.0 km
Solve the problem.A triangle has a base of length x + 2 and a height of x + 8 and has an area of 36 square units. Find the length of base and height. (A = 
BH)
A. base = 6 units; height = 12 units B. base = 6 units; height = 6 units C. base = 8 units; height = 9 units D. base = 4 units; height = 9 units
Solve the following linear programming problem by the method of corners.
Find the greatest common factor of the numbers.240, 4500
A. 30 B. 180 C. 60 D. 240