1. 4
2.4
3.3
4.2
5.2
6.what after the plus
7.3
8.
Answer:
D.$4 paid for 4 hats
Step-by-step explanation:
What is unit cost?
unit cost can be defined as the amount paid for a unit quantity of a product
From the given options
only options D represents unit cost
the reason is because $4 was paid for 4 hats
it clearly shows that 1 hat cost $1
Answer is parallel lines
Reason - same slope (3x) and different y intercept means they will be parallel lines because their slope is the same but they will cross the y axis at different points.
I changed the first equation to y intercept form
y = 3x - 10 to match the other equation
y = 3x - 6
The Ostrich will take 64 minutes to cover 40 miles.
Data;
- rate = 25 miles in 40 minute
<h3>Rate</h3>
To calculate the time it will take the ostrich to cover 40 miles, we have to compare it with the rate (speed).

Cross multiply both sides

simplify the value

divide both sides by the coefficient of x

From the calculations above, it would take the ostrich 64 minutes to cover 40 miles.
Learn more on rates here;
brainly.com/question/8728504
well first the complement I 90-19=71
and supplement is 180-19=161