Answer:
$
or ≈$
Step-by-step explanation
The question states that Mrs. Hadley spent $126.97 on one month, $237.81 on the next, and $198.42 on the last. To get the total, we can add these values together.

An estimation would be:

We can use this estimation to determine that the total value is reasonable.
Answer: lateral surface area = 119.4cm^2
r = 2 cm.
h = 9.5 cm.
Steps:
Lateral surface area of a cylinder = 2πrh
r = radius h = height π = pi
2π(2)(9.5)
2π(19)
38π = 119.38052
Answer:
-679
Step-by-step explanation:
14, 5, -4, ...
a = 14
d = 5 - 14 = -9
nth term = a + (n - 1) d
n(78) = 14 + (78 - 1) * -9
= 14 + 77(-9)
= 14 -693
= -679