exam Maths Puzzle Numerical Ability

A ball is thrown upward from a roof of a building 100m tall with an initial velocity of 20m/s. Use this information for exercise 35-38.

#36
When will the ball reach a height of

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exam Other Question
write an algebraic expression to represent the cost of a concert ticket, h, with a service charge of $6.75 6x-4(9-x)=106 ;7