Answer:
1. 7% change increase
2. 27%change decrease
3. 39% change decrease
4. 29% change increase
Step-by-step explanation:
I hope this is right
I am not sure about the last two phrases, but here's what I think.
2(n+18)
18(2+n)
(-6)*(-6)*(-6)=-216.
Therefore, the cubed root of -216 is -6.
Answer:
Step-by-step explanation:
x² - 144 = x² - 12²
= (x +12)(x - 12)
a² - b² = (a + b)(a-b)
Let Jeremy's age be x
if Jeremy's grandfather is four times as old as he is,grandfather's age is 4x
if the sum of their ages is 90, we have
x%2B4x=90
5x=90
x=90%2F5
x=18->Jeremy's age
Jeremy's grandfather will be 4x=4%2A18=72
answer:
D. 72
