20 points and brainliest to the fastest, right answer! answer asap: use cross products to determine which of the following proportions are equivalent to each other. select all situations that apply. a/b=c/d a/c=b/d a/d=c/b b/a=d/c d/a=c/b

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

happy to

pls mark as brainliest