Jack saves 50 pence coins £1 coins and £2 coins. He has the same number of each coin. He has saved more than £100. What’s the smallest number of each coin he could have?

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Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

F. a fair coin is thrown in the air four times. if the coin lands with the head up on the first three tosses, what is the probability that the coin will land with the head up on the fourth toss? a. 0 b. 1/16 c. 1/8 d. 1/2