9 x 9 = 81
81 - 21 = 60
60 / -6
10
Answer/Step-by-step explanation:
An equation that describes the relationship can be written as
.
Using the two sets of coordinates, (2, 140) and (4, 280), calculate the slope (m) as shown below:

Substitute m = 70 into 
The equation would be:

This equation can be interpreted as follows:
The heart's resting rate is 70 beats each minute.
Answer: round the cost 90 and percent to 10 use a benchmark percent 0f to 10
Step-by-step explanation: took the test
Answer:
x=-4.36
Step-by-step explanation:
The answer is 7/10 because the even values are 2,4,6, and the others are 7,8,9,10. Added together, it adds up to 7/10