exam Maths Puzzle Numerical Ability

Heres the question:
A farmer wants to buy 100 animals for $100.00 (must buy at least one of them)

Horses-$5.00
Cows-$3.00
Chicks-.50

How many horses,cows and chicks does the farmer need to have 100 and 100.00?

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exam Other Question

hi!
my problem is now: THE DISTANCE BETWEEN THE ROAD OF A BRIDGE AND THE TOP PART OF ITS ARCH IS 3m. IF THE ARCH OF THE BRIDGE IS GIVEN BY THE EQUATION
h(x)=7x-x^2, FIND THE HEIGHT OF THE BRIDGE.
thank you! I have to describe the transformation on the following graph of f(x)=log(x). I also have to state the placement of the veticle asymptote and x-intercept after tne transformation.