Why is - t - 3 written as 3 - t? is it wrong if it is left as -t -3?

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. a new supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which size bag provides the best deal, and how much will you save each month? compare the cost of the new supplier to the current one.

Describe the relationship between the angles of similar triangles and the sides of similar triangles

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table