Which row operation is needed to transform the matrix  

Solve the following system of equations using matrix methods. x + 7y + 2z + 3w = 7 -5x + 6y + 3z + 2w = 0 9x + 5y + 11z + 2w = 4 3x + y – 8z + 4w = 5​​

A loan was paid off with an $9000 check after 18 months.  Assuming simple interest and an 6% interest rate, what was the size of the original loan?

Treatment of Bacterial Vaginosis in pregnancy can be initiated with any of the following EXCEPT.

The genetic code is redundant; meaning that:

A bacterial does not need to produce a particular enzyme for a metabolic pathway. The DNA is blocked with a protein that inhibits the production of mRNA. This is gene expression at ___________.

If the ___________ does not open, _________ cannot proceed.

p53 is a tumor suppressor gene which binds to the promoter site of a gene. The p53 protein acts at the ___________ level.

Multiple copies of a polypeptide can be translated using a _______________. 

A newborn’s telomeres are _______ an octogenarian’s (senior’s) telomeres.