A) 3+4 (7-h) - 4 ( 3h - 1) = B) 4i + 7i - ( i - 9) +2 =
C) 3(4j + 2) -5 (2j - 6) +4 (6j - 1) =

Please show the working if possible.. ( Bodmas is my nightmare) :C

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16