exam Maths Puzzle Numerical Ability

2[18-(5+3^2)/7]
we are doing the (pemdas) i'm not sure what to start with first do idivide or mulitply first

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exam Other Question

write equation in standard form

y+2=5/3(x+6)
A trolley car track rises vertically 50 feet over a horizontal distance of 720 feet. What is the angle of elevation of the track?