(3x+7)(2x−5)

=(3x+7)(2x+−5)

=(3x)(2x)+(3x)(−5)+(7)(2x)+(7)(−5)

=6x2−15x+14x−35

=6x2−x−35

Hope This Helps.

Might be wrong but i'd say c

**Answer:**

x = and y =

**Step-by-step explanation:**

Applying the trigonometric functions to the given triangle;

i. To determine the value of x;

Sin θ =

Sin 45 =

x = 16 * Sin 45

= 16 *

x =

ii. To determine the value of y;

Cos θ =

Cos 45 =

y = 16 * Cos 45

= 16 *

y =

Thus, x = and y =

**Answer:**

The slope is 4.

**Step-by-step explanation:**

**Point slope form is y-y1 over x-x1. I put the coordinates in like this. **

**9-(-7) over 3-(-1) so thats 9+7 over 3+1. 16 over 4 is 4. **

<span># of books = 4 ; original cost = 4*9=36; savings = 0.10*36= 3.60

</span>

<span># of books = 2 ;original cost = 2*20=40; savings = 0.20*40= 8.00

</span>

<span>Percent savings:

original total cost=$76

Total savings = $11.60

Percent savings: 11.60/76 = 0.1526..= 15.26%</span>