How many terms are in the binomial expansion of (3x + 5)9?

6(2x+y)+2(x+4y) how can i solve this

Use the radius you found in part i (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. show your work and round your answer to the nearest tenth. the surface area of a sphere: sa = 4πr^2 self note: 3.8.4

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles