We are given this:

First step is to get rid of brackets. There is no sign in front of first brackets, so we do not change the sign. In front of second brackets there is negative sign so we need to change sign for each term inside of those brackets.

Next step is to group terms with same exponent in descending order.

Now we add or substract terms with same exponent.

Standard form means ordering terms in a descending order of an exponent.

576-320=256

256/576 x100= 44.4% or 44% rounded off.

**Answer:**

$60.00 in his savings account per week

**Step-by-step explanation:**

First, we can convert the information given into points so we can more easily find the rate of change, or slope:

(5, 340) and (9, 580)

Then, we can subtract the y-values and x-values of both, then divide those differences, to find the slope. Remember that the change in y goes on top of the division problem and the change in x goes on the bottom of the division problem:

(580-340)/(9-5) = 240/4 = 60

So, $60 in his savings account per week.

To convert cm³ to m³, you can break down the units.

cm³ = cm x cm x cm

Each cm is converted to m so :

m³ = m x m x m

= 1/100 x 1/100 x 1/100

= 0.000001

So, 1cm³ is 0.000001m³, so to convert cm³ to m³ you divide your value by 1,000,000 and vice versa.

1. 0.35m³

2. 8m³

3. 43.34m³

4. 30m³

5. 0.77m³

**Answer:**

**Step-by-step explanation:**

Angles with measures and (or pmore precisely, vertical angle to angle 8x-21) are supplementary (add up to 180°).

**Converse to same-side interior angles theorem** states that If two same-side interior angles are supplementary, then l║p.

So, to prove that lines l and p are parallel, you have to show that angles and are supplementary.

Thus,