Answer: 10
<u>Step-by-step explanation:</u>
varies directly means: 
Step 1: solve for k ⇒ 
Step 2: plug in the given value and k to solve for the missing value: 
42(5) = 21(x)
2(5) = x
10 = x
4/3pi *r3 = 972pi
Divide both side by pi
4/3 *r3 = 972
r3 = 972* 3/4
r3 = 729
r = the square root of 729 to the third power (I don't know if I'm expressing this correctly but answer is 9, hope you get that)
r = 9 that's your answer.
Hope it's correct, appreciate if you could let me know
Answer:
17.85
Step-by-step explanation:
12.75 multiplied by .40 = 5.10
5.10 + 12.75 = 17.85
-(-9) - 14 - (6) + 5 + (-8) - 2 - (11) - (-2)
9 - 14 - (6) + 5 + (-8) - 2 - (11) - (-2)
-5 - (6) + 5 + (-8) - 2 - (11) - (-2)
-11+ 5 + (-8) - 2 - (11) - (-2)
-6+ (-8) - 2 - (11) - (-2)
-14 - 2 - (11) - (-2)
-16 - (11) - (-2)
-27+2
-25
Choice A
