exam Maths Puzzle Numerical Ability

(-3)+(-5)+(+4)-(-6)-(+2)

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exam Other Question

Find the measure of an angle if its supplement measures 10 degrees less than three times its compliment. HI
please help me with this

A parking meter accepts only Quarters and dollars. If there are 31 coins and a value of $ 20.50 how many quarters and dollars are there.

thanks for any help coming my way