Use the
distributive property to express 30 + 75

Distributive property is when we take a common factor of the terms in the sum and writing the sum as a product-sum instead

30 + 75 ⇒ The greatest common factor of 30 and 75 is 5

we know that 30 = 5 × 6 and 75 = 5 × 25

So, by taking the common factor '5' out, we can write 30 + 75 as 5(6 + 25)

1.17+3.99a. you combine the terms with a to create 3.99 and the 1.17 stays because it has no like terms or a variable