If a sphere has a circumference of 138.16 in., what is the surface area of the sphere?

A bag contains 3 red balls and 6 blue balls. 2 balls are selected at random. Find the probability of selecting 2 red balls.

One day in December the temperature in Dublin was - 3°C, in Salerno it was 7°C, while in Murmansk it was - 10°C.

X+5/12=5/8 solve for x

Which seris of transformations shows that rantangle A is simular to rectangle B

A triangle has side lengths of 5a+3 5 a + 3 inches and 2a+3 2 a + 3 inches. If the perimeter of the triangle is 9a+12 9 a + 12 inches, which expression represents the lengths, in inches, of the third side of the triangle?

Write an indirect proof. Given: 5x+7≥52 Prove: x≥9

How many bits are in one dollar

Angela uses 6.8 pints of white paint and blue paint to paint her bedroom walls. 4 5 of this amount is white paint, and the rest is blue paint. How many pints of blue paint did she use to paint her bedroom walls what is the fraction also

Factor completely. n ^4 - 1

Which is the better deal 10 pens for 8.99 or 25 pens for 19.75