Step-by-step explanation:
Find 1 pack of pencil:
1 pack = 10 ÷ 5 = $2
9 packs = 2 x 9 = 18
Answer: $18
Investment of $3000 at 16% simple interest for 2 years
Investment of $3000 at 5% simple interest for 20 years
Investment of $1000 at 16% simple interest for 20 years
Solution:
(1) Investment of $3000 at 5% simple interest for 20 years



Simple interest 1 = $3000
(2) Investment of $3000 at 16% simple interest for 2 years



Simple interest 1 = $960
(3) Investment of $1000 at 16% simple interest for 20 years



Simple interest 1 = $3200
Order from least interest amount to greatest interest amount:
$960 < $3000 < $3200
Investment of $3000 at 16% simple interest for 2 years
Investment of $3000 at 5% simple interest for 20 years
Investment of $1000 at 16% simple interest for 20 years
Answer:
A: x-sqrt3y-3=0,
Step-by-step explanation:
Hopefully this helps!
RQS is obtuse angle and TQS is acute angle