13 - 4/7 = <span>12.4285714286 Or when you round it 12.43</span>
21 and -4, because -4x21 = -84, and 21+-4 (– 4) = 17
By multiplication, 12*(1/4) = 3
by division, 12/4 = 3
in words, a quarter of 12 is 3
Given:
The equation is:

To find:
The solution for the given equation to the nearest hundredth.
Solution:
We have,

Divide both sides by 3.


Taking ln on both sides, we get

![[\because \ln e^x=x]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%5Cln%20e%5Ex%3Dx%5D)
Divide both sides by 2.4.

![[\because \ln (90)\approx 4.4998]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%5Cln%20%2890%29%5Capprox%204.4998%5D)

Round the value to the nearest hundredth (two decimal place)

Therefore, the value of K is 1.87.
Answer:
$34.86
Step-by-step explanation:
21 x 0.66 = 13.86
21 + 13.86 = 34.86