exam Maths Puzzle Numerical Ability

Multiply:
(5x-6y)(5x+6y)

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exam Other Question

Al purchased a new refrigerator that cost $736.12 with interest included. He paid $100 as a down payment and agreed to pay the remainder in 18 monthly payments. What amount will he Graph the function by plotting points.

f(x)=1/2x+6

plot the point (x,f(x))with an x value of -12.