In an arithmetic sequence, find a6 when a1 = 13 and d = 4

Three cylinders have a volume of 2836 cm^3. cylinder a has a height of 900 cm. cylinder b has a height of 225 cm. cylinder c has a height of 100 cm. find the radius of each cylinder. use 3.14 as an approximate for π

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.

2,10,-50 next two numbers geometric sequence