50
what is the sum of the first four composite numbers?
19
20
27
28

C.27

Step-by-step explanation:

Composite number is a number that have factor other than 1 or the number itself. It is the opposite of prime number. Then to solve this question it will be easier to make this list

2= 2 *1 = prime

3= 3 *1 = prime

4= 2 *2 = composite

5= 5 *1 = prime

6= 2 *3 = composite

7= 7 *1 = prime

8= 2 *2 * 2 = composite

9= 3 *3 = composite

then 4 first composite is: 4+6+8+9= 27

the graph on the bottom right

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10