Lin runs 5 laps around a track in 6 minutes. a)How many minutes per lap is that?
b)How many laps per minute is that?
c)If Lin runs 21 laps at the same rate, how long does it take her?

a) 1 minute and 12 seconds

b) .833 repeating

c) 25 minutes and 12 seconds

Step-by-step explanation:

A and B are simple so for C:

21 laps = 5 * 4 = 20, 6 * 4 = 24, 20 + 1 = 21, 24 + 1 minute and 12 seconds = 25 minutes and 12 seconds

12 * 5 = 60

If I messed up tell me I keep confusing myself.

(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation:

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x