The heart rates for a group of 21 students taking a final exam are given below. assume the heart rates are normally distributed. use excel to find the 95% confidence interval for the true mean. round your answers to two decimal places and use increasing order.

The circumference of a circle is 5 pi cm. what is the area of the circle?

Asap for seven months an ice creams vendor collects data showing the number of cones sold a day (c) and the degrees above 70 degrees f the vendor finds that there is a positive linear association between c and t that is the best modeled by this equation c=3.7t+98 which statement is true? the model predicts that the average number of cones sold in a day is 3.7 the model predicts that the average number of cones sold i a day is 98 a model predicts that for each additional degree that the high temperature is above 70 degres f the total of number of cones sold increases by 3.7 the model predicts for each additional degree that the high temperature is above 70 degrees f the total number of cones sold increasingly by 98

Can someone me do math because i am having a breakdown rn because i don’t get it