set up the equation, relating the new ratio of salt
to solution to the desired 20% salt solution.
a)) 19.2/(160 – x) = 20/100
b)) (160 – x)/19.2 = 20/100
c)) 0/19.2 = x/160
d)) 19.2/x = 20/100

the  answer is A

Step-by-step explanation:

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.