Correct the mistake from nr. 6. Thank you!

The correct form for each case is:

Step-by-step explanation:

I'm gonna give you the reason for each case.

a) The original equation is:

Now, we're gonna solve the first part of the equation and comparate:

How you can see, the first part is different from the last number, for this reason, the mistake is the 6, then I change it by the 24.

b) The original equation is:

As the previous exercise, we're gonna solve the first part:

You must know that when you multiply two negative signs, the result is positive.

c) The original equation is:

But, this equation can be made in this form:

How you can see, the first part can't be operated or anything, the one form to operate this is removing the plus sign and operating like a multiply.

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.

add the numbers under frequency to find the total number:

5 + 8 +7 + 4 + 0 +1 = 25

the answer is 25.