You need to know the area if you're going to
1st selection: cover the surface of the dartboard.
(4ab - 9a - 8) - (7ab - 1)
distribute (multiply) the negative through the parenthesis
<span>(4ab - 9a - 8) - 7ab + 1
No need for other parenthesis because nothing in front or to combine inside. </span>
<span>4ab - 9a - 8 - 7ab + 1
</span>
Combine like terms
- 3ab - 9a - 7
1 mile = 1.6 km
x = 50 × 1.6
x = 80 miles
Answer:
well the top shows its 45° so the thr bottom right hand side is also 45 ° but the side where it has a red squares is 90 °
