In a group of 42 people, 30 people speak Spanish
20 people speak French.

Find the smallest possible number of people who speak both Spanish and French

8 people

Step-by-step explanation:

There are two ways of doing this question, so i have put both in here. One is mathematically, and another with a diagram.

Mathematically:

For this we will add the two types of speaker (french and spanish)

20 + 30 = 50

but we see this is > 42 (greater than 42).

If we subtract 42 from 50 we get 8. This is the smallest number of crossover we can have.

Hope this helped x

With a diagram:

this is answer of 144 cubic meters

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°