exam Maths Puzzle Numerical Ability

An employee who produces x units per hour earns an hourly wage of y = 0.85x + 8 (in dollars). Find the hourly wage for an employee who produces 10 units per hour.

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exam Other Question

Please help me solve for x:
a) 5x(^1/2)=20
b) 8x^-3=64
c) 8(x-2)^3=27
d) (x+3)^sqrt2=25^sqrt8
We are struggling with these problems. Thank you
Find the variation constant and an equation of variation where y varies directly as x and y=80 when x=10.

The variation constant is K=_____
The equation of variation is y=_____