-1,3 that’s easy u should definitely pay attention in class
10 blocks = 6 min
30 blocks = 18 min
You can answer this because you know that 10 x 3 is 30, so if if the number of blocks tripled then the amount of time should triple as well because he's running at the same rate.
The area of a circle is given by

If you want to approximate pi with 3.14, the formula becomes

Yes, true because all rectangles have 4 sides with opposite sides that are parallel.
Answer:
The total sales during the promotion is $69.6
Step-by-step explanation:
we are given
The average daily sales at a bookstore was(7.6k + 2.2) dollars over a 4-day promotion
we have to find total sales during 4 days
so, we can integrate it to find total sales

now, we can solve it



now, we can plug bounds
and we get


So,
the total sales during the promotion is $69.6