What do the following two equations represent?
y = 62 - 2 21 – 12y = 24

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20