Answer:
Step-by-step explanation:
k(8) = 4(8) - 4
= 32 - 4
= 28
answer is A
8.8-3.4=5.4
Just subtract 8-3 and 8-4 and you'll get 5.4
Hope it helps!

Brainliest please if you found my answer helpful! :)
<span> First, reduce the fraction to lowest terms, e.g. 8/6 = 4/3.
Look at the denominator. Split it into its prime factors. If its prime
factors only consist of 2's and 5's, then it will be terminating.
Examples:
16 = 2 x 2 x 2 x 2, so terminating
25 = 5 x 5, so terminating
2000 = 2 x 1000 = 2 x (2 x 5) x (2 x 5) x (2 x 5), so terminating
12 = 2 x 3, so repeating (has prime factor 3, which is not 2 or 5)
13 = 13, so repeating (has prime factor 13, which is not 2 or 5) Hope this helps!!
</span>
There are 60 minutes in one hour
multiply the number of hours by the number of minutes per hour
2.5×60=150
the answer is Aubrey played on the playground for 150 minutes
You plug 11 in where x is.
r(11) = (11 + 1)(11 - 3)
= (12)(8)
= 96