exam Maths Puzzle Numerical Ability

carol ordered 120 air filters for the garage. The number of air filters was 8 less than 2 times the number of gas filters ordered. How many gas filters were ordered?

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exam Other Question

I need help on mutiplying like terms

the Question is: 2x(3x + y) + 3y (x + 2y)
Please show me the steps to solve this.

graph the region decribed by the inequality

-4>=2y

Thanks so much