exam Maths Puzzle Numerical Ability

Please help me with this word problem. I am having problem understnding and solving the question. Than you wor your help

Tropical Pools sells an aboveground model for p doll

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exam Other Question

There are 13 members on a board of directors. If they must form a subcommittee of 6 members,how many different subcommittees are possible? Solve the following system by using either addition or substution. If a unique solution does not exist, state whethher the system is depent or inconsistent.

10x + 2y = 7
y = -5x + 3