Can someone pls answer and explain this correctly?

Step-by-step explanation:

All you have to do for this is follow PEMDAS (Parenthesis, Exponent, Multiplication, Division, Addition, Substraction) Which is the order of operations.

First you do parenthesis, , when you have a positive exponent outside a parenthesis like this, you add them together, and in this case, you get,

After that, you do the rest of the exponents as well as multiplication, .

Now we plug in the 81 from our last step along with the 16 from the first step and multiply them together.

Then you just simply need to find which of the answers come out to be the result we got which is 1296. Out of these 4 possible answers, ends up being equal to 1296 which means that is the correct answer.

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b