78 x 88 = 624 + 6,240 = 6,864
78+88/2=166/2=8383
1/2 (78 + 88) = 83
69, 78, 79, 88, 88, 88, 92, 93, 95, 98, 100 The mean is 88. The mode is 88. The range is 31.
The GCF is 2.
(100 + 86 + 78)/3 = 88
The median of those numbers is 78. There are 18 numbers and when they are in numerical order the two middle ones are 76 and 80, so halfway between them is 78.
The pattern rule for the sequence 97, 88, 78, 67 is that each number decreases by 9. Starting from 97, subtracting 9 gives 88; subtracting 9 from 88 results in 78, and subtracting 9 from 78 gives 67. Thus, the next number in the sequence would be 67 - 9 = 58.
Range = 89 - 78 = 11
73.5
The median is 78.
The GCF is 2.
78