Never due to if they have different slopes they can only have 1 solution.
39/10
And/or
3 9/10
And/Or
3.9
Answer:
4
Step-by-step explanation:

(x is input, t is time, r is rate of change)
Answer:
51/12 - 23/4
find the LCM of 12 and 4
51-69/12= -18/12= -9/6 = -3/2 = -1.5
The exponent indicates how many times the base is used as a factor