Question

Help I need the answer so I won’t fail

Answer 1

18

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 = (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

9

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!