800 - 50 = 750
750 ÷ 5 =150
150 small vehicles were washed
Answer: Therefore it must be the first one, 40
Step-by-step explanation: Vertical angles are always congruent, which means that they are equal. x = 40
The first one is additive
the second one is additive
the third one is multiplicative
the last one is multiplicative
