0.12 x 70 = 8.4
12% of 70 is 8.4
Answer:
Base Fee = $7
Extra charges = $7
Step-by-step explanation:
Represent the base charge with x and the additiional charges with y.
For the 5 hours job, we have:

For the 3 hour job

Solving for x and y;


Subtract the second equation from the first


Solve for y


Substitute 7 for y n the first equation





Is a supposed to be the answer? Is there any other options to choose from the no given list?
Answer:

Step-by-step explanation:

=> 2t +1 + 2t -1
100
=> 4t
100
=> t
100/4
=> t
25
Answer:
Yes
Step-by-step explanation:
Three points are coplanar if they lie on the same plane.
Points A and M lie on the plane
on the line
Point I lies on the line which intersects the plane
at point V.
Since lines
and IV intersect, there is a plane at which these two lines lie. Name this plane 
Thus, points A, M and I lie on the plane
so they are coplanar.