Ahat is marked down 45% and its new price is $69. what was the original price rounded to the nearest cent?

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

2 over 5 and 4 over 15

don’t know last one sorry

step-by-step explanation: