exam Maths Puzzle Numerical Ability

Find the surface area and volume of a cylinder with the given dimensions. Round to the nearest tenth.

1.) r=6.5m,h=15m



Thanks so much

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exam Other Question
"Your grades are 76, 90, 85 and 87. If the next grade received counts twice, what grade do you need to maintain an average of 84 in the class?" Evaluate each function for x= -2, 0, and 5.

1.) y = 9+ x

2.) y = x^2 - 1



This is totally confusing me so I need help thanks!