exam Maths Puzzle Numerical Ability

Tickets for the high school musical are $6.00 for adults and for $4.00 for students .how many adults bought tickets if 420 student tickets are sold and the total money collected is $3618 ?

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exam Other Question
Use a table of values to graph f(x) and g(x) on the same set of axes.
f(x) = 2^3x and g(x) = 8^-x
I am having difficulty with picking the x values what x values would be suitab Can someone help me solve this quadratic equation by completing the square? PLEASE!
2x^2+10x+11=0

This is what I have so far:
2x^2+10x/2=-11/2 which leads to;
x^2+5x=-11/2
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