Answer:
The third answer- a reflection over the x axis then a reflection over the y axis
The first one is -8+2 = -6
And the second one is 2 x 2 = 4
I am thinking your answer is 78 students. You do 1/5 times 390. And I think the the part about the dog is just extra information.
I'll use arithmetic series to find it.
First two-digit number divisible by 3 is 12, last such number is 99. Every 3rd number is divisible by 3.
So,

<u>There are 30 such numbers.</u>
Answer:
it means the value of x
Step-by-step explanation: