**Answer:**

I) 8x12=**96cm^2**

Probably 96.0 to 2 s.f

II)8.3x12.5=103.75cm^2

so it's **103.8cm****^****2** to 1 d.p and 100 to 2 s.f

**Perimeter**

**I)** 8cm

Lower bound is 7.5

Higher bound is 8.5

12cm

Lower bound is 11.5 and upper bound is 12.5

**Ans:**

**Lower** first -

(7.5 x 2) + (11.5 x 2) = **38cm**

**To 2 s.f is**** ****38.0cm**

**Higher** next -

2 x (8.5+12.5)= **42cm**

**To 2 s.f is**** ****42.0cm**

**Perimeter**

II)8.3cm x 12.5cm(1 decimal place)

1d.p is 0.1

0.1/2 =0.05

8.3

Lowest is 8.25cm (8.30 - 0.05)

Highest is 8.35cm (8.30 + 0.05)

12.5

Lowest is 12.45cm (12.50 - 0.05)

Highest is 12.55cm (12.50 + 0.05)

**Ans**:

**Lower** first -

2 x (8.25+12.45) = **41.4cm**

**To 2 s.f is**** ****41.0cm**

**Higher** next -

2 x (8.35+12.55) = **41.8cm**

**To**** ****2**** ****s****.****f**** ****is**** ****42.0cm**

**Hope**** ****this**** ****helps****!**** **

You need to divide y by x to get your answer

**Answer:**

Option **A**** **is the correct option

**Step-by-step explanation:**

When there is a ( + ) in front of an expression in parentheses , there is no need to change the sign of each term.

That means, the expression remains the same.

Also, Remove the unnecessary bracket

⇒

Collect like terms

⇒

⇒

Calculate

⇒

Hope I helped!

Best regards!!

Answer: y=9.50x+15

y is the total amount of money. 9.50 is how much fabric costs per yard so you would multiply it by X. 15 is what is never going up, nor down, so it is substituted for the b

**Answer:**

**Step-by-step explanation:**

472