Answer:
Luis:

Marina:

Answer: Marina got the better percent score than Luis
Marina:
Answer:
C) (7 , 14)
Step-by-step explanation:
Substitute each ordered pair into the equation
-5x + 3y = 7.
A) (2 , -1)
-5(2) +3(1) = -10 +3 = -7 this does not equal 7 so not true
B) (-5 , 3)
-5(-5) +3(3) = 25 +9 = 34 this does not equal 7 so not true
C) (7 , 14)
-5(7) + 3(14) = -35 + 42 = 7 this equals 7 so true
D) (-2 ,−135)
-5(-2) + 3(-135) =10+405 =415 this does not equal 7 so not true
Answer:
The answer for this question is B)
Answer:
$20 because 2x4=8 3x4=12 12+8=20
Step-by-step explanation:
108=103e^(5k)
108/103=e^(5k) take the natural log of both sides
ln(108/103)=5k
k=ln(108/103)/5
k≈0.00948
P=103e^(12*0.00948)
P≈115 million (to nearest million)