Ineed it’s due tomorrow and i don’t understand i need on 1-10

for all of them calcuate whats in the prenteces first then use those numbers to  solve the rest of the problem

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

im pretty sure it would be 5 am, hope that , and give brainliest and guys if this is right then press the button and give 5 stars