7. Elisa puts $1,000 into each of 2 bank accounts:
Account A: 3% interest rate, compounded annually.
Account B: $40 bonus added to the account each year.
a. Which account is modeled by exponential growth? How do you know?
b. Which account will yield more money in the long run?

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

answer: just subtact the units and then add the non negative : happy to

step-by-step explanation:

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540

so, converting firstly the mixed fractions to improper fractions and then "adding".