After being exposed to an incredible shrinking machine, Halley's height decreased by 108 cm over 6 seconds. Her height decreased by the same amount each second. How much did Halley's height change each second? a. 108 cm

b. −108 cm

c. 8 cm

d. −18 cm

Candice uses the function f(t)=t+100−−−−−−√ to model the number of students in her after-school program. the variable t represents days and f(t) represents the number of students. how many days does it take for there to be 15 students in her program? a. 225 days b. 125 days c. 325 days d. 115 days