Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. an experiment is set up to study the weights of 35 mice after they are injected with a drug. the population mean is 23.50 grams with a standard deviation of 3.40 grams. the standard error of the sample mean is . (round off your answer to the nearest hundredth.)

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

How do i do this activity, is appreciated

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need