6a. n=600
6b. n=6
6c. n=1/6
6d. n=50
7. The answer is -55.8 or 7c.
All I had time to do but might edit answer later.
Answer:
B
Step-by-step explanation:
n³-125=0
n³=125
n= ³√125
n=5
Answer:
27/35 is the exact answer
7/10 is an estimate
Step-by-step explanation:
4/7+2/10
Simplify the fraction
4/7+1/5
The common denominator is 35
4/7*5/5 + 1/5 *7/7
20/35 + 7/35
27/35
To estimate
4/7 is close to 1/2
2/10 is close is 1/5
1/2 + 1/5 =
5/10 + 2/10 = 7/10
$5.99 is the correct answer.
17% of 19,700 = 3349. So if you add 3349 to 19,700 you get 23,049. So it sounds like it's around a 16-17% markup.
