Five over seven plus blank over six equals fifty one over forty two

The blank is 3

Step-by-step explanation:

1 - Give the blank a variable

x = our blank

2 - Write it out

3 - Get the denominators equal

4 - Simplify

5 - Solve for the numerators

30+7x = 51

-30         -30

      7x = 21

        x = 3

it’s 3

Step-by-step explanation: Sorry if im wrong lol

      From: me?

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

details

step-by-step explanation: