Which shows the correct first step to solving the system of equations in the most efficient manner?
3x+2y=17
x+4y=19
a. x=4y+19
b. (-2y+17)/(3)
c. 4y=-x+19
d. y=(-3x+17)/(2)

Don't know how to find x given these segment lengths

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample