A1 digit number and a 3 digit number have a sum of 205. the same two number have a difference of 195, a product of 1,000 and a quotient of 40. what are the two numbers

Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?