What is the circumference of a circle with diameter 8.5ft ? use pi on your calculator, round answer to the nearest tenth.

53.4 ft

Step-by-step explanation:

the formula for circumference of a circle is 2 * pi * r(radius)

so input your values and you get 53.38 but since you need to go to the nearest 10th round the 8 up 1 and turn the 53.38 to 53.4.

10 miles

step-by-step explanation:

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