the sum of 2 numbers is 58. the larger number is 10 more than than the smaller number. what aree numbers

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?

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer