Answer:
see below
Step-by-step explanation:
25x + 200 > 1,200
Subtract 200 from each side
25x + 200-200 > 1,200-200
25x> 1000
Divide by 25
25x/25 >1000/25
x>40
The first two days he will both swim and bike are days 24 and 56.
Swim: Days 6,12,18,24,30,36,42,50,56
Bicycle: Days 8,16,24,32,40,48,56,