Answer:
first one linear
second one quadratic
linear
Step-by-step explanation:
$30.
70/28 = 2.5
12 x 2.5 = 30
did this answer your question...no. OK well that is your loss
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a) and , b) and , c) and , d) and , e) and , f) and , g) and , h) and .
Each system is solved as follows (Cada sistema es resuelto como sigue):
a) and
b) and
c) and
d) and
e) and
f) and
g) and
h) and