They will have same amount in 45 weeks.
Step-by-step explanation:
Given,
Starting amount of Nancy = $425
Per week saving = $25
Let,
x represent the number of weeks.
N(x) = 25x+425
Starting amount of Seamus = $875
Per week saving = $15
S(x) = 15x+875
For same amount;
N(x) = S(x)

Dividing both sides by 10

They will have same amount in 45 weeks.
Keywords: function, division
Learn more about functions at:
#LearnwithBrainly
3w-13w=-20
Combine like terms
-10w=-20
divide both sides by -10
w=2
Answer:
a5 =243 x (1/3)^(5-1) = 243x 1/81 =3
Explanation
a(n) = a(1) x r^(n-1)