Shayna has a total of 50 music CDs in two categories. The number of rock CDs is 8 more than twice the number of her country CDs. Which system of equations can be used to find how many rock CDs, r, and country CDs, C, Shayna has?
O Er+c=50
c=2r - 8
O Gr=2c
-50 =
OHT+c=50
r=2c + 8

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?

If square root x = -7, then x= -49 true or false

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