2d + 13 = 12
d = -0.5
-0.5 × 2 = -1
13 + (-1) = 12
Hope this helped☺☺
Explanations:
Twice a number d and 13 = 2d + 13
The sum = Total
Is 12 = "= 12"
That equals :
2d + 13 = 12
Answer:
the third one on the first picture it skips 18 and messes up the +1
The answer is 40 because if you do simple division you will get that 800/20 is 40
Since the sales price is 65%, the amount you save would be 35%. 35% of $25 is $8.75.
