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What is the simplified expression for 6(2(y+x))

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup