Answer:
<h2><u><em>
x - 15 = 2</em></u></h2>
Step-by-step explanation:
The difference of a number and fifteen is two. Write and Algebra Sentence then solve the number.
x - 15 = 2
x = 2 + 15
x = 17
-------------------------
check
17 - 15 = 2
2 = 2
<u>the answer is good</u>
<h2>
Answer:</h2><h2>
The population of the city after 7 years = 569,859</h2>
Step-by-step explanation:
The population of the city of Miami = 463,300
The rate of increase in population every year = 3%
The population of the city after 7 years = ?
By formula, 
Pn is the population after 7 years
P is the current population = 463,300
r = 3 %, n = 7

= 463300 (1.23)
= 569859
The population of the city after 7 years = 569,859
10 3/5 + 12 1/2 =
10 6/10 + 12 5/10 =
23 1/10 =
35 - 23 1/10 =
11 9/10 =
11 9/10 miles
Hope that helps
Answer:
S10 = 320
Step-by-step explanation:
The formula for calculating the sum of the nth term of an AP is expressed as
Sn = n/2(2a+(n-1)d))
Given
a = 4
d = 5
n = 10
S10 =10/2{2(5)+(10-1)5}
S10 =5{10+9(6)}
S10 =5{10+54}
S10 = 5(64)
S10 = 320
Hence the sum of the first ten terms of the sequence is 320
D because its more formal then the other ones.