exam Maths Puzzle Numerical Ability

Which form would you find most convenient to use to calulate a tip of 20% on a meal that cost$45.00?

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exam Other Question

Evaluate the given function for the value specified. f(x)=xsquare - 7x+10 ; find (a) f (0), (b) f (5),and (c) f (-2).

a) f(0=>

b) f(5)=>

c) f(-2)=>

PLEASE HELP I AM SO CONFUSED Adult tickets for a play cost $18 and child tickets cost $14. If there were 26 people at a performance and the theater collected $396 from ticket sales, how many children attended the play?