exam Maths Puzzle Numerical Ability

Select the line parallel to 6x + 14y=20

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exam Other Question

Sam needs to get carpet for two rooms of his house. Estimate the number of square feet (square footage) in the two rooms if one room measures 10 1/2 feet by 9 3/4 feet; and the other room measures 19 1/4 feet by 18 1/2 feet. If I could get some help with this problem I would appreciate it.

Factor each of the following trinomials completely.

2a^3 - 52a^2b + 96ab^2

I keep coming up with something strange I know it is not correct. Help please?