Ony is 12 of a mile ahead of laura on a jogging path. if tony is running at 5 miles per hour, and laura is running at 7 miles per hour, how long will it take laura to catch up with tony?

Laura will take hour or 15 minutes to catch up with Tony.

Explanation

Distance between Tony and Laura is miles and the difference of their speeds = (7 - 5 ) mph = 2 mph

For catching up with Tony, Laura needs to travel that miles with the speed of 2 mph

As, Distance = speed × time

So,   = 2 × t

⇒ t = hour = × 60 minutes = 15 minutes

That means, Laura will take hour or 15 minutes to catch up with Tony.

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.