3+6x129-834+23 divided by 20

State if the two triangles are congruent. if they are, state how you know?

2/3(-6y+9x) expand each expression using the distributive property

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