Blood urea nitrogen (BUN) is a measure of the amount of urea in the blood (R). It provides useful information about your health. The liver produces urea as a waste product of the digestion of proteins (R, R). Urea is a safe vehicle to get rid of excess nitrogen from the body.
Algebra is important for future employment opportunities in Californiaâs increasingly knowledge-based economy, even in jobs con-sidered to be âblue collar.â For example, an applicant must have passed Algebra I to enter an electrician apprenticeship program. But if students are aiming for college, algebra is essential.
The order of operations in algebra is important if you want to find the correct answer. You first work through any grouping symbols, then exponents or roots, then multiplication, division, addition, and finally subtraction. Practice following the order of operations by solving this example problem: