Answer:
10
Step-by-step explanation:
C is the correct answer.
Plug the x & y values for x and y in the equation and you'll get true statements. For example:
-4(-3) -4 = 8
12-4=8
And in the second equation:
-3 -5(-4) = 17
-3 +20 = 17
1 hour and 10 minutes = 70 total minutes
The aerobics class is 20 minutes and then since the yoga class is 30 minutes longer it will then be 50 minutes.
20 minutes aerobic+50 minutes yoga= 70 total minutes
Answer:

Step-by-step explanation:
Calculate the distance d using the distance formula
d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (6, 2) and (x₂, y₂ ) = (- 3, - 2)
d = 
= 
= 
=
≈ 9.8 ( to 1 dec. place )
Its 6 people over 3 3.25x6=19.5=19.50