Answer:
an = 0.5^n−1
Step-by-step explanation:
Use the formula :
a_n = a_1r^n−1
To identify the geometric sequence.
6²
Using the rule of exponents
⇔ , then
=
= 6²
b= 4a-c
There isnt an actual number you can solve for here so just say what b equals to.
4a-b=c
Move b
4a=b+c
Move C
4a-c=b
A [2.5, ∞)
Mary = (1/3)x
Erin = x - 8
John = x
Here is your equation:
(1/3)x + (x - 8) + x = 267
Take it from here.
S= 350+60w
