*PLEASE ANSWERRR!!! NEED HELP ASAP*

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.

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

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?