I'll take this challenge since I'm not feeling lazy for once.... x would represent Gavin and y would represent Seiji.
a.
b. I will solve your system using substitution.
<span>Step 1: Solve </span>

for x

(add -y for both sides)

<span>Step 2: substitute </span>

for x in


<span>
</span>


(simplify both sides of the equation)

(add -425 to both sides)<span>
</span>


y=200
step 3: substitute 200 for y in





c. Already answered with the picture that is attached.
d. Gavin earned 225 dollars while Seiji earned 200 dollars.
<span>Biomass is the matter in living organisms.
Biomass contains chemical energy. When organisms die,
chemical compounds in their biomass break down. Bacteria,
fungi, and other organisms help change these chemical
compounds into simpler chemicals. These simpler chemicals
are used by other living things, And chemical energy is the energy that helps in transformation of fungi and bacteria</span>
Answer:
i think its A (edit: im gonna take that back because i was looking at the wrong side, logically it is 12)
Step-by-step explanation:
Answer:
Wilma has $12.
Step-by-step explanation:
Since we don't know how many hours she worked, we know that Wilma earned 9x dollars at her job. Then she spends $15, so we can just subtract 15 from 9x.

We can just replace the x with 3 to get:

Hence, Wilma has $12.
Answer:

Step-by-step explanation:
Given



Required
Determine the total miles


Convert to improper fractions

Take LCM


