exam Maths Puzzle Numerical Ability

Paint Town sold 45 paintbrushes, one kind at $8.50 each and another at $9.75 each. In all, $398.75 was taken in for the brushes. How many of each kind were sold?

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exam Other Question

Graph each linear function using the slope and y intercept

y=2x+3 Hello,

Thank you for helping me.
1.) f(t) = log(t - 5)

2.) g(x) = 5e x (x above the e)

3.) g (x) = in (t+ 4)

4.) g (t) = 5 t is above the 5

Thank you very much