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
I’d like to answer the but What angle ??
Answer is 5 its because ummmm uhhhhhhh hahaha i really dont know how to explain it but the answer is 5
Answer:
you can use a calculator
Step-by-step explanation: