(a)

if lydia wants to text at least 8 characters per second, like james, then the equation 10r+4=8 could be used to model this situation. solve this equation for r

(b)

explain what the variable r represents in the equation given in question 3 ^^

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

What are different types of statistical programs