Answer:
2x
Step-by-step explanation:
The steps in the patterns A and B form a sequence
The attached diagram represents dots in patterns A and B
<h3>How to draw the diagrams</h3>
For pattern A, we have:
Step 2 = 10 dots
Increment of 3 dots in each step
This means that:
Step 0 = 4 dots
Step 1 = 7 dots
Step 2 = 10 dots
Step 3 = 13 dots
For pattern A, we have the following rule

When n = 0 to 3, we have:

Step 0 = 1 dot

Step 1 = 3 dots

Step 2 = 9 dots

Step 3 = 19 dots
Next, we draw the diagrams of both patterns (see attachment)
Read more about patterns at:
brainly.com/question/15590116
Step-by-step explanation:
choice 2 ..............
Answer:
210 kilometers
Step-by-step explanation:
<em><u>First; we are going to divide.</u></em>
60(hour in minutes) / 20 mins ...to find out what the excess distance the car went.
Which is 1/3 or 0.3333333...
<u><em>Second; we are going to combine the decimal and the whole number together.</em></u>
2 hours + 0.333333... hours = 2.3333333...hours
<u><em>Finally; we are going to multiply</em></u>
90 (km/h) * 2.33333333
Which equals ...210 kilometers!!