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!

I don't know 1 but 2 can be 2.3 over 4.5 I think sorry if it's wrong but I hope it helps
Answer:
Step-by-step explanation:
cylinder's height=3×(diameter of sphere)=3×6=18 cm
radius of cylinder=3 cm
volume of cylinder=π r²h=π(3)²×18=162 π cm³
volume of sphere=4/3 π(3)³=36 π cm³
reqd. empty space=162 π-3×36π=54 πcm³
<u>Solution-</u>
Let's assume, the rate of interest of $8000 is x%,
then the rate of interest of $17000 is (x+0.3x) =1.3x%
Interest earned by $8000,

Interest earned by $17,000,

According to the question,





∴ Rate of interest of $8000 is 1.96% and rate of interest of $17000 is (1.3×1.96) =2.55%
Answer: $30,904.49
Step-by-step explanation:
I’m not sure if I did this right but it was the same was as the other question