Answer:
1. 
2. 
Step-by-step explanation:
<u>Problem #1:</u>
1. Find the GCF (Greatest Common Factor)

2. Factor out the GCF and simplify.

3. Factor 
<u>Which two numbers add up to 7 and multiply to 10?</u>
2 and 5
<u>Rewrite the expression using the above.</u>

4. Done!

<u>Problem #2:</u>
1. Find the GCF (Greatest Common Factor)

2. Factor out the GCF and simplify.

3. Use the perfect square formula. 


4. Done!

On #29 x = 12 and <apb = 90° and <dcb = 40° and on #30 all I dont even understand, sorry
Answer:
12 and 8
Step-by-step explanation:
set two numbers as x and y
mean of 10 → x+y/2=10
range of 4 → x-y=4
x+y=20
+ x-y=4
____________
2x=24, x=12
12-y=4, y=8
Answer:
Step-by-step explanation:
Ok
Answer:

Step-by-step explanation:
0.125 as a fraction is 125/1000 or 1/8
- 1 is the same as
(anything to the power of 0 is 1) - 8 is the same as 2³ (2 × 2 × 2 = 8)
÷ 2³ =
(You subtract the powers: 0 - 3 = -3)
Hope this helps!