book Maths Puzzle Numerical Ability

Maria, Kai, and Dom sold tickets to the school dance. Kai sold 11 fewer tickets than 3 times the number Maria sold. Dom sold 10 more than both Maria and Kai put together. Together,

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book Other Question
A triangle has three angles, R, S, and T. Angle T is 40° greater than angle S. Angle R is 8 times angle S. What is the measure of each angle? (1) find the center of the circle whose equation is


x^2+ y^2-3x+8y-8=0




(2) write the equation of the circle with center (-2,1) and which passes through (3,4).