Answer:
1 is the value of x
Step-by-step explanation:
...............
Answer:
50.40
Step-by-step explanation:
7 hours and 20 minutes times 7= 50 hours and 40 minutes
And then you have to change it into a mixed number and it is 50.40
A) 0.4, to do this just do 40/100
B) x + 0.4x= retail price
C) 56*0.4= 22.4, so add this to the original price for a total of $78.4
D) Just like in part C, 56*0.4= $22.4
