Gary took 7 hours
to mow 4 lawns,
then at that rate,
how many lawns
could be mowed
in 35 hours?
Use a Tape Diagram

20 lawns

Step-by-step explanation:

35÷7=5

5×4=20

(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

details

step-by-step explanation: