Line A has a slope of 6/10 and a line B has a slope of 3/5 are both lines parallel?

Yes

Step-by-step explanation:

6/10 simplifies to 3/5, meaning they are proportionate. This means that the slope will be exactly the same and the lines will never intersect, meaning they are paralell.

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.

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