-6x + 3 ≥ 21
Subtract 3 from both sides.
-6x ≥ 21 - 3
Simplify.
-6x ≥ 18
Divide both sides by -6.
Remember, when dividing or multiplying by a negative number, you must switch the signs.
x ≤ 18 / -6
Simplify.
x ≤ -3
So, your answer is D) x ≤ -3
~Hope I helped!~
(2x)^3*(4y)^2
=8x^3*16y^2
=128x^3y^2
Answer:
2^3 or 8
Step-by-step explanation:

Hope this helps!
Answer: AD/CD = 2/5
Explanation:
Triangle ABC is similar to triangle DEC on the basis of AA(Angle angle)
Recall, if 2 triangles are similar, it means that the ratio of their corresponding sides are equal. Thus,
AB/DE = BC/EC = AC/DC
From the information given,
AB/DE = 7/5
Thus,
AC/DC = 7/5
AD + CD = AC
(AD + CD)/DC = 7/5
AD/DC + CD/DC = 7/5
AD/DC + 1 = 7/5
AD/DC = 7/5 - 1
AD/DC = 2/5
AD/CD = 2/5