A junior one-day admission to an amusement park is $25. This price is increased by 80% for adults. Find the mark-up and the adult price. The mark up is .

which expression represents the approximate length of bc?

step-by-step explanation:

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

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