Answer:
15
Step-by-step explanation:
Given the function

and 
let f(x)=y
Substitute in f(x)

From the definition inverse function
if
⇒ 
Substitute this in the above expression

Substitute y=10
⇒

Therefore a=15
I believe its Alan, because I multiplied 5,280x21 and got 15,840 and then I divided that by 60, and got 258. 258≤1750... so Alan is you're answer
Step-by-step explanation:
option A i think
hope it helps
The simultaneous equations is missing +8
Answer:
-9/28
Step-by-step explanation:
<u>Step 1: Solve</u>
-6/7 * 3/8
-18/56
-18/2 / 56/2
<em>-9/28</em>
<em />
Answer: -9/28