8-2=6
10+6+3=19
I’m not sure if you are allowed to do it that way so I can find other ways if needed
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
A=(a+b)*h*1/2=(20+8)*7*1/2=49 m2
V=A*H=49*2=98 m3
<span>1/4 1 gallon = 4 quarts 1 quart = 0.25 <span>gallon
I hope this helped!
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