exam Maths Puzzle Numerical Ability

if an object is thrown upward with an initial velocit of 80ft/second, ten its height is after t seconds is given by: h=80t-16t squared.
what is the max height of the object?
find

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exam Other Question

In a weekend baseball game tournament, Joel had 4 hits in 13 times at bat. That is he hit safely 4/13 of the time. Write the decimal equivalent for Joel hitting, rounding to thre Elliot began the journey at 8am at 40 kilometers per hour. Benita began to chase him at 11 am at 50 kilometers per hour. What time was it when Bernita got within 60 kilometers of Elliot?