exam Maths Puzzle Numerical Ability

Can someone answer this one for me?

Use the Distributive Property to remove the parentheses from the following expression:

(1 + 2t + 3y)(-7)

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exam Other Question

Lucy has some money invested at 18% annual interest and three times as much invested at 12%. Her total annual income from the two investments is 2,200 pesos. How much was invested Find the exact value of cos 375º.

Thank You