Let f(x)= 3x - 1 and g(x)=x^2 + 1 Find (f o g) 7).
Then (fog)(7) = 1. (Simplify your answer.)

Step-by-step explanation:

I do not fully understand your question yet

assuming this is what you asked

f(x) = 3x-1 and g(x) = x² +1  

f o g(7)  = f( g(7)) = f( 7² +1) = f( 50) = 3*50 -1 = 149

(f o g) (7) = f(g(x))(7) = f( x²+1)(7) = ( 3x²+3-1) (7) = (3x²+2)(7) ...

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

15% chance.

step-by-step explanation:

3/10 times, the 5 year old will get a tablet. 5/10 times, the 13 yer old will get a tablet. multiply both fractions to get 15/100 times, both would have a tablet.