Answer: 7x-y=10
Step-by-step explanation:
62unit/hour is the answer
distance/time
Answer: 
Step-by-step explanation:
Given:

To make
the subject of the formula means that we want to make
to stand alone , the first thing to do is to multiply through by 1/4a , that is

take the square of both sides:

Answer:
D' (-4,-2)
E' (-1,2)
F' (2,-4)
Step-by-step explanation: