Question 7 of 10 Solve the system of equations:
y= 2x
y = x2 - 3
O A. (-1, 2) and (3, 2)
O B. (-1, -2) and (3,6)
C. (-2, -4) and (2, 4)
O D. (-2, 1) and (2, 1)

D (-2,1) and (2,1)

Step-by-step explanation:

there would be 365 different 4 digit numbers

step-by-step explanation:

i belive that it is 365 because i asked google

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional