Answer:
x = 7.5
Step-by-step explanation:
The ratios can be written as a fraction. The word "and" can be replaced with the = sign. Now create a proportion.

Cross multiply
6x = 9(5)
6x = 45
Divide by 6 on both sides
6x/6 = 45/6
x = 7.5
Answer:
<em>Unit rate is 54 words per minute</em>
Step-by-step explanation:
297 / 5.5
297 ÷ 5.5 = 54
Y = 3/4x + 4
Y = mx + b
m = slope (6/8)
b = y intercept (4)