The answer to your question is A
X = √7²+4² by using Pythagoras Theory as the triangle is a right angled triangle
It all depends on the importance of the variable its self. Its important to solve it so you know what the variable is and its important to solve one at a time because its impossible to solve a variable completely if you have two of them
Answer:
A. 30 for everyone in class | B. 12 Boys in the class
Step-by-step explanation: