Question

HELP ME IM SO CONFUSED

Answer 1

Answer:

• 1) 4812 students
• 2) 763 pounds
• 3) $30906.76

Step-by-step explanation:

1)

• Initial number = 2988
• Rate of increase = 10%

Number of students after 6 years:

• $a_6 = 2988(1+0.1)^{6-1} = 4812$

2)

• Initial number = 1200
• Rate of decrease = 14%

Amount of gold after 4 years:

• $a_4=1200(1-0.14)^3 = 763$

3)

• Initial number = 28000
• Rate of increase = 2.5%

a)

Salary after n years:

• $a_n=28000(1+0.025)^{n-1} = 28000*1.025^{n-1}$

b)

Salary in the 5th year:

• $a_5=28000*1.025^4 = 30906.76$

Answer 2

Refer to the attachment