<u>Answer:</u>
None
<u>Explanation:</u>
-3(2+7) = -3×9 = -27
-6+21 = 15
-21+6 = -15
Hence there is no equivalence
7minutes and 30 seconds
28/7=miles mile*30=second runners pace
Answer:
C
Step-by-step explanation:
I hope it's right
Sorry if it's wrong
Answer:
B
Step-by-step explanation:
Answer:

Step-by-step explanation:
In this problem, we are expected to write/express the given statement in algebra notation. that is using mathematical expression letters and symbols to express word problem
Hence: nine times the difference of 5 and y
1. the difference of 5 and y= (5-y)
2. 9*(5-y)
Hence the expression is given as 