Answer:
-4
7
-1
23
Step-by-step explanation:
I did the assignment on Edgenuity.
X=Marks sister's age
x+11= Marks age
x+11 +8 = 2x+8
x+19=2x +8
x+19-x=2x-x +8
19-8=x+8-8
11=x Marks sisters age in 8 years
11-8= 3 Marks sisters age now
x+11=22 Marks age in 8 years
22-8= 14 Marks age now
-23 is a negative number so that means 7 is a greater number. any number with a minus sign like this - means it’s a negative number, so any number that you have to compare it to and if that number has nothing before or after it, then that would be the greater number
<span> "At least 13 years" means more or equal 13,
so
x </span>≥ 13.<span>
</span>
Square root of 69,081 is 262.832646, so the answer to the nearest tenth will be 262.8. Good luck!