The answer would be d=8t
This would be because the time they want is 1 hour. So when you plug in t as 1 you need d to equal 8. So you just have to change that 6 in the first equation to an 8. This new equation means that the person can travel 8 miles every hour.
Possible two digit pairings:
1*8 = 8(The two digit number being 18)
2*4 = 8 (The number being 24)
4*2 = 8 (Or, 42)
8*1=8 (81)
81 is the largest of the possible numbers.
Answer:
How many students like only tennis and football?
13 who like tennis and football
How many students like only baseball and football?
26 who like baseball and football