First. y=2x
second d is correct
third is a
1/5 (or 20%) of $1,200 is $240
$1,200 - $240 = $960
The cost of a $1,200 washing machine after a discount of 1/5 (20%) is $960
Answer:
-30(-8)
Step-by-step explanation:
A negative times a negative always equals a positive.
Answer:
https://revisionmaths.com/gcse-maths-revision/shape-and-space/vectors
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Step-by-step explanation:
y = 2x
y = x + 1
y-1 = x
y = 2x
y = 2 (y - 1)
y = 2y - 1
y = -1
