The price of an item has been reduced by 70%. The original price was 70$. What is the price of the item now?

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

The product of sin 30 degrees and sin 60 degrees is same as the product of

Y+ 2/y is it a polynomial in one variable or not? and if so, why?