Answer:
14
Step-by-step explanation:
12:6=2
12+2=14
so her brother it's 14 years old
Answer:
1 23/30
Step-by-step explanation:
you convet the mixed numbers into improper fractions then find the lowest common factor and combine :)
Answer:
No!
Step-by-step explanation:
Prime is anything that cannot be divided into but by one and itself, therefore all even numbers are Composite.
Answer:
already in standard form
Step-by-step explanation:
the equation of a quadratic in standard form is
y = ax² + bx + c ( a ≠ 0 )
y = x² + 4x + 3 ← is in standard form
with a = 1 , b = 4 , c = 3
2. 2k + g
3. 4m + 8
5. 10j - 4
6. 12y + x