Dan took 12.5 seconds to run the 100-meter dash. He calculated the time to be approximately 1) 0.2083 minute
2) 750 minutes
3) 0.2083 hour
4) 0.52083 hour

69

step-by-step explanation:

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

answer: 10 turtles

step-by-step explanation: as turtles have four legs so 4.10=40 therefore birds are 4 which sue counted