Answer:
18
Step-by-step explanation:
Do you see a pattern? Each time it decreased by 3. 33-3=30, 30-3=27, the pattern goes on, just do the same with the last shown number. 21-3=18
Answer:
<em>y=-6</em>
Step-by-step explanation:
<u>Proportions</u>
A direct proportion is a relation between variables where their ratio is a constant value. This means that if y and x are proportional, then:
y = kx
Where k is the constant of proportionality.
Substituting x=-3 y=9:
9 = k(-3)

Now the relationship is:
y = -3x
For x=2
y = -3(2) = -6
Answer: 6
Step-by-step explanation:
<span>5+x=12
Subtract 5 from both sides
Final Answer: x=7</span>