**Answer:**

no solutions

**Step-by-step explanation:**

−2a + 2a + 7 = 8

Combine like terms

7 = 8

This is never true so there are no solutions

Double bar graph, double line graph, scatter plot.

**Answer:**

The probability that a customer pays late each month is P(B) = 0.27

**Step-by-step explanation:**

Let P( A ) be the probability that the customer pays on time and the value is 0.55

Let P( B ) be the probability that a customer pays late each month

So

The probability that a customer pays late or on-time each month is P(A u B) and the value is 0.82

The probability that a customer pays on-time and late each month is P(A n B) and the value is zero ( 0 ) given that it is impossible

Now The probability that a customer pays late or on-time each month is mathematically represented as

P(A u B) = P(A) + P(B) - P(A n B)

=> 0.82 = 0.55 + P( B ) - 0

=> P(B) = 0.27

**Answer:**

(x, y) = (4, 9)

**Step-by-step explanation:**

You can use the second equation to write an expression for y.

y = 10 - 1/4x . . . . subtract 1/4x from the given 2nd equation

Now, substitute that for y in the first equation:

1/2x + 1/3(10 -1/4x) = 5

1/2x + 10/3 -1/12x = 5 . . . . eliminate parentheses

You can work this a couple of ways from here. One is to multiply by 12 to eliminate fractions. Another is to work with the numbers as they are. We'll do that, because we don't get enough practice doing arithmetic with fractions.

5/12x = 5/3 . . . . . subtract 10/3

x = (5/3)/(5/12) = 12/3 = 4

From above, we can use our expression for y:

y = 10 - 1/4·4 = 9

**The solution is (x, y) = (4, 9)**.

**Answer:**

(r^9-s^10) (r^18+r^9 s^10 + s^20)

**Step-by-step explanation:**

hope this helps :)