Solve 21=p−12. The solution is p=

p=33

Step-by-step explanation:

swap sides so that all variable terms are on the left hand side.

p-12=21

add 12 to both sides.

p=21+12

add 21 and 12 to get 33.

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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