There are about 37 trillion (37,000,000,000,000) cells in the human body.

(a) if each cell were as big as the tip of a fine point pen tip (0.5 mm), and the 37 trillion pen tips
were set out side-by-side in a long line, how many miles long would that line be? (there are
1000mm in 1 m, 1000 m in a km, and 1.609 km in a mile.)

(b) the average distance from the earth to the moon is 238,900 miles. how many times could
you stretch the line of pen tips from the earth to the moon?

11,497,824.74 miles.

768,780,200,000 pen tips.

Step-by-step explanation:

(a) The length in km = 37,000,000,000,000 * 0.5 / 1,000,000

= 37,000,000 * 0.5

= 18,500,000 km

= 18,500,000 / 1.609

= 11,497,824.74 miles.

(b) 238,900 * 1.609 = 384,390.1 km.

Number of pen tips = 384,390 * 1000*1000 / 0.5

= 768,780,200,000.

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right