exam Maths Puzzle Numerical Ability

Landscaping:

To measure the height of a tree. Steve measures the angle of elevation of the treetop as 46 degrees. He then moves 15 ft closer to the tree and form this new point

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exam Other Question

Sandy has $3.75 in change. She has three more quarters than dimes but twice as many nickels as quarters. Express the given information as an algebraic expression and simplify. [you are not required to solve the problem] Angela needs 20 quarts of 50% antifreeze solution in her radiator. She plans to obtain this by mixing some pure anitfreeze with an appropriate amount of a 40% solution. How many quarts of each should she use?