Answer:
The sale price is 25.5$ The relationship is that the sale price is 15% less than the regular price.
Step-by-step explanation:
How to find sales price: 30=100% 30÷10=3=10% 3÷2=1.5=5%
Sales price = 3+1.5=4.5, sales price= 30-4.5=25.5
ALL CAN BE MADE IN SOLID FIGURES
45% of number = 180
=> 100% of number = 180 * (100/45) = 400.
Hence the number is 400.
(sqrt3)/3
