Answer:
$8d
Step-by-step explanation:
cost of each CD = $8
number of CD's = d
total cost = number of CD's x cost of each CD
= d x $8
= $8d
Answer:
Its proportional
Step-by-step explanation:
15×1 hour is 15
15×2 hours is 30 and so on
Answer:
Im not sure what the question is but if its what the relation is between the boxes the first one would be y = x+5 the second one would be y=x-4 the third would be y= x+3 and the fourth would be y= x times 2
Step-by-step explanation:
9/2= -10z-1/2(-10z+1)
multiply all terms by 2 to eliminate the fraction
9=-20z-(-10z+1)
remove ( ) distribute -1
9=-20z+ 10z-1
combine like terms
9= -10z -1
add 1 to both sides
10=-10z
divide by -10
-1=z
hope this helps
