exam Maths Puzzle Numerical Ability

(p+2)(p-10)Help please

(4g+3)(9g+6)

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exam Other Question

One number is 12 more than a another. the sum of the smallest number and twice the larger number is 39. find the larger number

x + 12 = y
x + 2(y)= 39

Am I on the right track for solving this problem? adult tickets for a play cost $17 and child tickets cost $7. if there were 32 people at a performance and the theater collected $354 from ticket sales, how many adults and how many children attended the play?