Question

Help I need the answer so I won’t fail

Answer 1

Answer:

18

Step-by-step explanation:

$16-18:(2+1)+2^3$

We must use the BEDMAS rules (Brackets, Exponents, Division, Multiplication, Addition, Subtraction)

We must first calculate what's in the brackets:

$2 + 1 = 3$

So the new expression is:

$16-18:3+2^3$

Next, we calculate the exponent:

$2^3 = 8$

So our expression is now:

$16-18:3+8$

Next we divide:

$18:3 = \frac{18}{3} = 6$

Our expression is now:

$16 - 6 + 8$

Then we subtract:

$16 - 6 = 10$

The new expression:

$10 + 8$

And finally we add:

$10 + 8 = 18$

Answer 2

Answer:

9

Step-by-step explanation:

We have to solve in order to find out if Sam is correct

Remember PEDMAS:

For Multiplication, division and addition, subtraction, do what appears first left to right

Parenthesis

Exponent

Division

Multiplication

Addition

Subtraction

16 - 18 + (2+1)+2^3

Parenthesis first: 2+1 = 3

16 - 18 + 3 + 2^3

Exponent next: 2^3 = 8

Subtraction (it's on the left) : 16-18 = -2

Addition: -2 + 3 = 1

Addition : 1 + 8 = 9

Sam is not correct, the answer is 9, not 16.

Hope this helps :)

Have a great day!