Newton's<span> first </span>law of<span> motion. In </span>football<span> the strategy is to get the ball down the field and that is when first </span>law<span> kicks in.</span>
Answer:
(a) Loss from selling 15 necklaces
(b) 
Step-by-step explanation:
<em>The question has missing details. (See the comment section for missing details)</em>
Given

Solving (a): Will she make a profit from 15 necklaces
To do this, we substitute 15 for b in 


The inequality is not true.
<em>Hence, she'll make a loss from selling 15 necklaces</em>
Solving (b): An expression that represents profit.
To do this, we solve for b in 
Collect Like Terms


Make b the subject


<em>This implies that to make a profit, she must sell more than 18 necklaces.</em>
Answer:
2(x+4)
Step-by-step explanation:
Answer:

Step-by-step explanation:
we know that
The measure of central angle ABC is
radians
so

subtends the complete circle
The area of the shaded sector is the area of a quarter circle
so
The area of a quarter circle is equal to

we have

substitute

53=20+x
Subtract 20 from 20 and 53
33=x
Hope this helps!
P.S.
Nice tab theme :P