Answer:
$12,800
Step-by-step explanation:
42-18= 24
24 is the years the money is growing.
24/4=6
200x2x2x2x2x2x2=12,800
if it doubles every six years it would be 200x2x2x2x2=3,200
the difference is 9,600
Answer:
C and B
Step-by-step explanation:
(6)
× 
← cancel 3x - 7y on numerator and denominator
= 
× 
= 
= 
→ C
(7)
÷ 
Factorise the denominators of both fractions
x² - 9 = x² - 3² = (x - 3)(x + 3) ← difference of squares
4x - 12 ← factor out 4 from each term
= 4(x - 3)
Then rewrite as
÷ 
← cancel 8 and 4 by 4
= ÷ 
• leave first fraction, change ÷ to × , turn second fraction ' upside down'
= × 
← cancel x - 3 on numerator and denominator
= 
× 
← cancel 2 and 6 on numerator and denominator
= 
→ B
Answer: 27
Step-by-step explanation:
45% is equal to .45.
.45 x 60 = 27.
If we multiply .45 by 60, we get 27. Therefore, Ahmed got 27 marks out 60.
If you want to check your answer, you can divide 27/60 to get .45.
Answer:
-4/5
Step-by-step explanation:
use point slope form, which is y2-y1/x2-x1
plug in the numbers to get 10 -(-2)/-7-8. double negatives make a positive, so -2 turns into a positive. so adding them together makes 12/-15. simplify it to get -4/5.
