Answer:
Option C: 4
Step-by-step explanation:
<u>Use the Pythagorean Theorem:</u>





Therefore, the value of x is 4.
Answer:36
Step-by-step explanation:

for every 7 students there are 4 girls, so for every 84 there must be 48
7*12=84
4*12=48
so, in all 84 students there are 48 girls
so amount of boys=84-48=36
there are 36 boys
Answer:
9/18
Step-by-step explanation:
The standard form is
-x + y = 19