Which answer is the best explanation for how to set up this problem?

235 + 64.1 = ?

a.
put a zero after the 1 in 64.1 and align the 2 in 235 with the 6 in 64.1.

b.
align place values so that the 5 in 235 is aligned with the 1 in 64.1.

c.
put a zero after the 1 in 64.1 and align the 2 in 235 with the 4 in 64.1.

d.
align place values so that the 5 in 235 is aligned with the 4 in 64.1.

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

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.

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d. what is the height of the tide after 93 hours?