(will give brainliest & many many points < 3 quickly! )

represent the arithmetic series using the recursive formula.

94, 87, 80, 73, …

a] f(n) = f(1) + (7)
b] f(n) = f(1) + (−7)
c] f(n) = f(n − 1) + (7)
d] f(n) = f(n − 1) + (−7)

D] f(n) = f(n − 1) + (−7)

Step-by-step explanation:

since you already know is an arithmetic series, you have to find the common difference.

87 - 94 = -7

80 - 87 = -7

73 - 80 = -7

the formula for the nth term is f(n) = f(n-1) + d

where f(n-1) is the previous term and d is the common difference, so if youu substitute you get:

f(n) = f(n-1) + d

f(n) = f(n-1) + (-7)

D

Step-by-step explanation:

f(n) - f(n-1) = 87 - 94

f(n) - f(n-1) = -7

f(n) = f(n-1) - 7

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.

he has 140 chickens because he has 10 times more chickens than ducks and he has 14 ducks so 14*10=140