exam Maths Puzzle Numerical Ability

Solve. x^2 + 8x + 15 = 0

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exam Other Question

x>5+4 or 2x<9+3
x>9 2x<12
x<12/2
x<6
Mrs. Martinez is buying a sweater that is on sale for 25% off of the original price. She has a coupon that gives her an additional 20% off of the sale price. Her final purchase price is what percent of the original price?