Answer:
Step-by-step explanation:
i am not do sure but i think its in the ones place...
-sorry if im wrong
1. We are given:

The only a which squared gives you 64 is 8. The perimeter of an 8 by 8 square will be 32. Half of that is 16. Now, let's see what we can do. We can set up:

Obviously, each side length has to be 4. So, the area of this square will be
16 units².
2. Let n equal her son's age. So, her age right now will be (S = her age):

1 year ago it was:

We have 2 equations, let's substitute. We can rewrite this as:

Solve for n:


We know the value of n, which is her son's age. So, her son is
1/15 of a year old or about 24 days old.
Answer: 0.75
Step-by-step explanation:
Answer:
= 11x + 2
Step-by-step explanation:
2(x+1)+9x
Distributive property
= 2x + 2 + 9x
Simplifying
= 11x + 2
To find how many sixth graders there are we need to find out how many students there are in 1/5 in the school. Divide 200 by 2 to find 1/5 of the school.
Since 3/5 of the school is 6th graders we multiply 100 by 3 to find that there are 300 students in the 6th grade.