Answer: d = -3
Step-by-step explanation:
2d+3=7d+18
-5d=15
d=-3
that is unsolvable coz no double decimal can be used
Step-by-step explanation:
21% of 36570
21/100 x 36570 = 7679.7
12.2% of 640
12.2/100 x 640 = 78.08
87.5% of 860
87.5/100 x 860 = 752.5
37.5% of 3200
37.5/100 x 3200 = 1200