Substitution<span> method is not better or worse </span>than<span> any other method of solving ... </span>Sometimes substitution<span> can be easier </span>than<span> using </span>elimination<span> or graphing. ... Maybe you would like to learn </span>more<span> about one of these?</span>
Answer:
C
Step-by-step explanation:
1/2 hour at 6 km/ hour = 3 km.
Total distance was 10km, so he rode his bike for 10 - 3 = 7 km
x = 7
Answer:
D. 
Step-by-step explanation:
we are given
Firstly, it is reflected over x-axis
we know that for reflection about x-axis , we can replace y as -y
we get
now, it is vertical shift up by 4 units
so, we can add 4 to y-value
we get
