exam Maths Puzzle Numerical Ability

Simplify using rules of exponents
#26.
(2x^-1y^2)^-3

#38.
(-2y^2/x)^-3
Thank you.

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exam Other Question

7) Tickets for a play at the community theater cost $20 for an adult and $8 for a child. If 220 tickets were sold and the total receipts were $3200, how many of each type of ticket were sold?

Can someone please help?

v/r
Jess I have another absolute value problem that is stumping me. We are supposed to solve for x:

|3x| = |x-1| + 2 .

Thank you for your help.

welljesse