Answers edited by FRANK Z.

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The point (-2 and -4) is in which quadrant of a coordinate grid?
How do you solve $0.5 = 4.1 x - 2 (1.3 x - 4)$ $0.5=4.1x-2(1.3x-4)$ ?
How do you simplify $\sqrt{3} \cdot 3 \sqrt{21}$ $sqrt3*3sqrt21$ ?
What are the answers and how do you solve them?
A cone has a height of $15 c m$ $15 cm$ and its base has a radius of $9 c m$ $9 cm$ . If the cone is horizontally cut into two segments $6 c m$ $6 cm$ from the base, what would the surface area of the bottom segment be?