Marta’s jump rope is 10 inches shorter than three times the length of David’s rope. If both of their ropes lay together end to end, they measure 120 inches long. How long is each person’s jump rope?

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply