Answer:
the first thing you learned is the base. then you can build off of it. just like math. you learn simple adding then you go onto multiplication and division.
Answer:
Step-by-step explanation:
no I belive 200 divide 15 is 13 i might be du,mb
Answer: 17. is A and 18 is most likely G
Step-by-step explanation:
Answer:

Step-by-step explanation:
x² = 19x + 12
⇔ x² - 19x - 12 = 0
Calculating the discriminant :
b² - 4ac = (-19)² - 4×1×(-12) = 409
The discriminant is positive ,then the equation has two solutions.
