exam Maths Puzzle Numerical Ability

Evaluate a(b+c) if a = 9, b = 3, and c = 7.

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exam Other Question

Calculate the probability of drawing four cards out of a standard deck.

P(4 of a kind)
P(All the same suit)
P(All the same #)

Thanks So much! a ground meat mixture is formed by combining meat that cost $2.20 per pound with meat that cost $4.20 per pound. How many pounds of each were used to make a 50lb mixture that cost $3.00 per pound?