Find the volume of the sphere shown. Give each answer rounded to the nearest cubic unit.​

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

y + 11 = (1/4)(x + 16)

step-by-step explanation:

investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation: