Which representation represents a proportional relationship?

A
x
2
4
6
8
y
6
8
10
12

B
y = 2 x + 2

C
On a coordinate plane, a line goes through points (negative 1, 0) and (0, 1).

D
x
4
7
12
15
y
8
14
24
30
A
B
C
D

Enter numbers to write 0.000328 0.000328 in scientific notation. 1 1 0.000328=3.28 × 0 . 000328 = 3 . 28 × =3.28×10 = 3 . 28 × 10

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?