Answer:
The missing number is 4
Step-by-step explanation:
Given
21 x 39 x _____ x 19 divided by 12 = 5187
Required
Fill in the gap
Let the missing number be represented with y; So, the expression becomes

Multiply both sides by 12


Rearrange the expression on the left hand side


Divide both sides by 15561



Hence, the missing number is 4
Answer:
x=6241
Step-by-step explanation:
^2 on both sides.
x=79^2.
x=6241.
Hope this helps plz hit the crown :D
Answer:
true
Step-by-step explanation:
42−25<0
−9<0