Answer:
584.03
Step-by-step explanation:
Given that principal amount = 500.20 dollars
Interest rate = 3 7/8% p.a.= 3100/8(12) per month
Period = 4 years = 4(12) = 48 months.
A= P(1+r/n)^nt
Here n = 12 t = 4 years.
Substitute to get
Future value = 
=584.03
Answer: C
Step-by-step explanation:
Length: 6in
Width: 8in
Height: 9in
![A=2(wl+hl+hw)\\A=2[(8in)(6in)+(9in)(6in)+(9in)(8in)]\\A=2(48in^2+54in^2+72in^2)\\A=2(174in^2)\\A=348in^2](https://tex.z-dn.net/?f=A%3D2%28wl%2Bhl%2Bhw%29%5C%5CA%3D2%5B%288in%29%286in%29%2B%289in%29%286in%29%2B%289in%29%288in%29%5D%5C%5CA%3D2%2848in%5E2%2B54in%5E2%2B72in%5E2%29%5C%5CA%3D2%28174in%5E2%29%5C%5CA%3D348in%5E2)
x = number of weeks which is some positive whole number
50x = amount saved after x weeks, when saving $50 per week
50x+800 = add on the 800 she already has
The expression 50x+800 is the total money saved. We set this equal to the 1150 to set up the equation we're after
<h3>Answer: 50x+800 = 1150</h3>
I think
(Total)
3 : 6 : 8 = 17
(Times by 30 to get total then you times by each ratio/side)
90 : 180 : 240= 510cm
2x - 5 = 7
2x = 7 + 5
2x = 12
2x/2 = 12/2
x = 6
to check:
2x - 5 = 7
2(6) - 5 = 7
12 - 5 = 7
7 = 7
