84.
90. All numbers that are multiples of 3, 5 & 9 are multiples of their lowest common multiple lcm(3, 5, 9) = 45 → multiples of 45 between 49 and 95 is 2 x 45 = 90.
There are four such numbers: 35, 42, 49 and 56.
The multiples of 4, 5 and 8 that are between 49 and 95 are just these two: 60 and 80.
Between the two numbers there are 49.
None in that range.
None.
84.
It is 80
90. All numbers that are multiples of 3, 5 & 9 are multiples of their lowest common multiple lcm(3, 5, 9) = 45 → multiples of 45 between 49 and 95 is 2 x 45 = 90.
60, 90.
54, 72, 90
60 and 90
Any of its multiples
The perfect squares in the range are 25, 36 and 49.
All multiples of 49 are divisible by it. Ex: 49, 98, 147 etc
All nonzero numbers have an infinite number of multiples.