exam Maths Puzzle Numerical Ability

If the sum of the consecutive integers from -22 to x, inclusive, is 72, what is the value of x?

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exam Other Question

how do you graph f(x) = {x + 2 if x < -2 or 2x - 1 if x greater than or equal to - 2} ?? Mrs. Shieh was 24 years old when Ingred was born. In three years the sum of their ages will be 68 years. How old is each now?