Mark has a collection of 1,400 baseball cards. Of these baseball cards, 40% are dated before 1980, 25% are dated from 1980 to 2000, and the rest are dated after 2000.

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

where is the figure

idk

step-by-step explanation:

payback