B. 3(21+25)
C. 7(9+4)
D. 3(60+25)
The correct option is c, which is 7(9+4).
The distributive property is a property that helps us to know that when a number is multiplied by the sum of two numbers, it is equal to the sum of products of these two numbersmultiplied by the third number individually.
For example,
a(b+c) = ab+ac,
Now, as given Monica uses the distributive property to write an equivalent expression to 63+28.
therefore, the common ratio is 63, and 28 is 7.
Thus, 63+28 = 7(9+4).
Thus, the correct option is c, which is 7(9+4).
Learn more about the distributive property:
Answer:
C
Step-by-step explanation:
The highest common factor of 63 and 28 is 7, thus taking out 7 gives
63 + 28 = 7(9 + 4) → C
The unit rate of hours is 2 per day.
There are 7 days in a week. You studied for 14 hours total. 14/7 is 2. So, 2hr/day.