Answer:

Step-by-step explanation:
#Using the method of substitution and replacement of unknown values.
Given that

Express eqtn (ii) in terms of x

Replacing for x in eqtn (i)

Substitute y value in eqtn(ii) to obtain x

Yes, is 218cm.
15+16+20+57+20+16+15+16+(57-15-15)+16=218cm
About 6,859,161,601 people were awarded the Bachelor's degree in 2009.
Yes. the hundred thousands are greater than the ten thousands.
Answer:
I hope my answer is right but im pretty sure its 26.13 :)
Step-by-step explanation: