Which situation ends with a result of 0? A. A stock earns $12 on Monday, but loses $4 each of the next 4 days. What is the change in the stock's value for the week?

B. An ion of potassium is made up of 19 positively charged protons and 18 negatively charged electrons. What is the overall charge of the potassium ion?

C. The depth of a lake increases 6 inches on Monday, but the water level evaporates 2 inches each day for the next 3 days. What is the overall change of depth of the lake?

D. Ahmed spends $5 each day for lunch for 5 days. He earns $30 on Friday mowing his neighbor's lawn. What is the total result of Ahmed's income and expenses?

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

explanation:

step-by-step explanation:

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function

umm im not really sure because i never had to do this

step-by-step explanation: