chews per second = 42/60 = 0.7 chews/second
0.7 x 100 = 70 chews in 100 seconds
Kimba chews her gum 70 times in 100 seconds if she maintains her rate of 42 chews in one minute. This is calculated by determining her chews per second and then multiplying that by 100 seconds. Thus, the answer is 70 chews in 100 seconds.
;