You should start with an equation.

The 'x' represents the week.
so now, we have to subtract 125 from the total amount which is 245.

now we have

to find 'x', we must divide 15 on each side

we are now left with

that means Sierra will have 8 weeks until she has enough money to buy the bike
Answer:
2
Step-by-step explanation:
Answer:
raise ^that 4 to the power of -1+2 like this
raise ^to the power -2 like this
5-2=3 <Awnser
Step-by-step explanation:
A:B:C
2:3
6:7
12:18:42
I think...
Answer:
-320 i guess
Step-by-step explanation:
51*-2*3-21+7=-320