Use the order of operations to evaluate this expression:

7 + (5 – 9)2 + 3(16 ÷ 8).

The value of the expression is

Hey there!

Order of operations is PEMDAS.

Let's do parentheses first.

7+ 2(-14)+3(2)

Now we multiply

7-28+6

Now we add and subtract.

-15

I hope that this helps!

  21.3

step-by-step explanation:

multiplying the given equation by c/sin(25°), we get

  c = 9/sin(25°) ≈ 21.2958 ≈ 21.3

we assume "c" is the length of ab, the side opposite angle c in triangle abc.

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