Which expressions are equivalent to x+x+x+2

3x+2

Step-by-step explanation:

For this, you have to add the x's. Imagine them as ones. 1+1+1 is 3. Which is the number of x's.

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

step-by-step explanation: