**Answer:**

do you have any options to choose from

**Answer:**

13

**Step-by-step explanation:**

8(2)-3

16-3

13

all you have to do next is add all of them in one equation and equate them to 18

when you find x, replace in each expression to get your answers

**Answer:**

6 tenths equals a half?

If we take 1 as the number. 1 equals ten tenths (10/10) therefore half that amount is 5. 5/10

**Step-by-step explanation:**

<u>Answer:</u>

<h2>4. A = 1029 cm²</h2>

<u>Steps:</u>

A = (35×21)+(21+2×3.5)×21/2

A = 735 + (21+7)×21/2

A = 735 + 28×21/2

A = 735 + 588/2

A = 735 + 294

<h2>A = 1029 cm²</h2>