exam Maths Puzzle Numerical Ability

cynthia bought five blank vhs tapes and four cassette tapes for $28.50.
Charlie bought four vhs tapes and two cassette tapes for $21.00 how can I find the cost of each type of tape?

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exam Other Question
indicate whether each statement is true Always, Sometimes, or never.
a. If a triangle is obtuse, it is isosceles.
b. The bisector of the vertex angle of a scalene triangle is p write in y=... form

-2(x+3y)=18