mark drags his little brother to the bedroom 10 times. his little brother screams in pain 2 times. what is the total of the numbers​

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

What is the circumference of the pie

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)