If a number is tripledand then reduced by nine, the result is sixty six what is the expression ,equation

The number is 196.

Step-by-step explanation:

Your equation is x times 3 divided by 9. 9 divided by 3 is 3. So x/3 = 66. Multiply 3 to both sides to get x = 196.

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