100 free throws* (7 goals/ 10 free throws)= 70 goals.
If David attempts 100 free throws, he will be successful about 70 times~
Drusilla will replace both items in 18 months and 36 months.
Given:
The area model.
To find:
The area as a sum and area as a product.
Solution:
The four terms of the area model are 
.
The area as a sum is the sum of all the terms of given area model.
Area as a sum = 
= 
The area as a product is the factor form of sum of all the terms of given area model.
Area as a product =
= 
= 
Therefore, the area as a sum is and the area as a product is .
<h3>
Answer: Choice A</h3>
Explanation:
You basically plug in x = 20, which is the same as saying "replace x with 20". Then you perform arithmetic to simplify each expression. Both simplify to 90, so angle 1 and angle 2 are the same measure. These angles are alternate interior angles, so we'll use the converse alternate interior angle theorem to conclude the lines are parallel.
Note: the alternate interior angle theorem says that if we have parallel lines, then the alternate interior angles are congruent. So the converse goes in reverse of this.
64 divided by 4 is 16. The answer is 16 I believe!
Edit: I realized you were asking for the cost. That would be 48. 64 - 16 = 48.
