What number should go into the blank so that the two expressions are equivalent to each other? (Use only the digits 0 - 9 to write the number.) b + b – 1 + b + b + 10 = __b + 9

4.

Step-by-step explanation:

lets just say the unknown is x.

Hope this helps :D

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the lateral surface area of a sphere is 2πrh where h=2r.

then:

surface area = 4πr^2.

in this case, r=8 units ⇒ surface area = 4π(8 units)^2. = 256π sq. units!

then, the surface area of the sphere shown in the image is: 256π sq. units!