Answer:
15
Step-by-step explanation:

Answer:
a) yx=63
b) y=3
Step-by-step explanation:
a)
yx=k (inverse formula)
7(9)=k
63=k
b)
y(21)=63
y=63/21
y=3
Answer:
Step-by-step explanation:
The answer is C because if you calculate it then the answer would be 65
Answer:
River D: 2780 River C: 2280
Step-by-step explanation:
Please mark brainliest
Answer:
Hi! The correct answer is x= -3 ,-5!
Step-by-step explanation:
<em>~Factor and set each factor equal to 0~</em>